CN108519899A - A kind of anti-screenshotss method of virtual desktop, system and relevant apparatus - Google Patents
A kind of anti-screenshotss method of virtual desktop, system and relevant apparatus Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 144
- 230000008569 process Effects 0.000 claims abstract description 103
- 238000012544 monitoring process Methods 0.000 claims description 19
- 238000005516 engineering process Methods 0.000 claims description 18
- 238000004590 computer program Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 7
- 230000006870 function Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
- G06F9/452—Remote windowing, e.g. X-Window System, desktop virtualisation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/04—Context-preserving transformations, e.g. by using an importance map
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Abstract
An embodiment of the present invention provides a kind of anti-screenshotss method of virtual desktop, system and relevant apparatus to reduce the risk of information leakage for preventing virtual desktop image by screenshotss.Present invention method includes：The current display interface image of virtual desktop is stored in buffer zone, when the display interface of virtual desktop changes, the display interface image in buffer zone described in real-time update；When recognizing target program calling image API, the sectional drawing process during described image API Calls is monitored, and in the screenshot capture that sectional drawing process is generated, part removal identical with the display interface image in the buffer zone generates masked images；The original screenshot capture generated in sectional drawing process is replaced with into the masked images.
Description
Technical field
The present invention relates to the field of computer technology more particularly to a kind of anti-screenshotss method of virtual desktop, system and related dresses
It sets.
Background technology
Desktop virtualization refers to virtualizing the terminal system (also referred to as desktop) of computer, to reach desktop use
Safety and flexibility.Our individuals can be belonged to by network access any time by any equipment, in any place
Desktop system, for the information security of virtualization desktop, it is often necessary to limit virtualization desktop screenshotss function.
In existing virtualization desktop screenshotss scheme, the side only to the anti-screenshotss of the local user terminal of virtualizing desktop system
Case shields the screenshotss function of local user terminal completely, cannot use local cut completely during using virtualizing desktop system
Shield function.
In existing scheme, local screenshotss function cannot be used completely during using virtualizing desktop system, when user exists
During using virtualizing desktop system, when opening the five application page except virtualizing desktop system by local user terminal, i.e.,
Make there is no the interface shown in virtualization desktop on current screen, it also can not be to the application except virtualizing desktop system interface
The page carries out local screen, influences the use of local screenshotss, user experience is bad.
Invention content
An embodiment of the present invention provides a kind of anti-screenshotss method of virtual desktop, system and relevant apparatus, virtual for preventing
Desktop picture reduces the risk of information leakage by screenshotss.
First aspect of the embodiment of the present invention provides a kind of anti-screenshotss method of virtual desktop, which is characterized in that including：
The current display interface image of virtual desktop is stored in buffer zone, when the display interface of virtual desktop becomes
When change, the display interface image in buffer zone described in real-time update；
When recognizing target program calling image API, the sectional drawing process during described image API Calls is monitored, and will
In the screenshot capture that sectional drawing process generates, part removal identical with the display interface image in the buffer zone generates screen
Cover image；
The original screenshot capture generated in sectional drawing process is replaced with into the masked images.
Optionally, as a kind of possible embodiment, the anti-screenshotss method of virtual desktop in the embodiment of the present invention, is also wrapped
It includes：
The selection instruction of user is received, the selection instruction indicates whether to allow screenshotss；
If screenshotss are forbidden in the selection instruction instruction, the masked images are returned into the target program；
If the selection instruction instruction allows screenshotss, the screenshot capture is returned into the target program.
Optionally, as a kind of possible embodiment, institute in the anti-screenshotss method of virtual desktop in the embodiment of the present invention
The sectional drawing process during monitoring described image API Calls is stated, and in the screenshot capture that sectional drawing process is generated, with the buffer area
The identical part removal of display interface image in domain, generates masked images, including：
It whether there is sectional drawing process during identifying image API Calls by API HOOK technologies or filtration drive technology；
If there are sectional drawing process, in the screenshot capture that sectional drawing process is generated, with display circle in the buffer zone
The identical part removal of face image, generates masked images.
Optionally, as a kind of possible embodiment, institute in the anti-screenshotss method of virtual desktop in the embodiment of the present invention
It states in the screenshot capture for generating sectional drawing process, part removal identical with the display interface image in the buffer zone, packet
It includes：
In the screenshot capture that sectional drawing process is generated, part identical with the display interface image in the buffer zone into
Row mosaic processing；
Or, in the screenshot capture that sectional drawing process is generated, portion identical with the display interface image in the buffer zone
Divide the picture for being filled with solid color.
Second aspect of the embodiment of the present invention provides a kind of anti-screen-cutting system of virtual desktop, it may include：
Memory module, for the current display interface image of virtual desktop to be stored in buffer zone, when virtual desktop
When display interface changes, the display interface image in buffer zone described in real-time update；
Monitoring module, when recognizing target program calling image API, for being cut during monitoring described image API Calls
Figure process, and in the screenshot capture that sectional drawing process is generated, part identical with the display interface image in the buffer zone
Removal generates masked images；
Replacement module, for the original screenshot capture generated in sectional drawing process to be replaced with the masked images.
Optionally, as a kind of possible embodiment, the anti-screen-cutting system of virtual desktop further includes in the embodiment of the present invention：
Receiving module, the selection instruction for receiving user, the selection instruction indicate whether to allow screenshotss；
First drive module, it is described for returning to the masked images if screenshotss are forbidden in selection instruction instruction
Target program；
Second drive module, if selection instruction instruction allows screenshotss, for will be original by what is generated in sectional drawing process
Screenshot capture return to the target program.
Optionally, as a kind of possible embodiment, in the embodiment of the present invention described in the anti-screen-cutting system of virtual desktop
Monitoring module includes：
Monitoring unit, for whether being deposited during passing through API HOOK technologies or filtration drive technology identification image API Calls
In sectional drawing process；
Screen unit, if there are sectional drawing process, in the screenshot capture for generating sectional drawing process, with the buffer zone
In the removal of display interface image identical part, generate masked images.
Optionally, as a kind of possible embodiment, in the embodiment of the present invention described in the anti-screen-cutting system of virtual desktop
Screen unit includes：
First shielding subelement, in the screenshot capture for generating sectional drawing process, with the display in the buffer zone
The identical part of interface image carries out mosaic processing；
Secondary shielding subelement, in the screenshot capture for generating sectional drawing process, with the display in the buffer zone
The identical picture being partially filled with as solid color of interface image.
The third aspect of the embodiment of the present invention provides a kind of computer installation, which is characterized in that the computer installation packet
Processor is included, such as first aspect and first aspect are realized when the processor is for executing the computer program stored in memory
Described in any one possible embodiment the step of method.
Fourth aspect of the embodiment of the present invention provides a kind of computer readable storage medium, is stored thereon with computer journey
Sequence, it is characterised in that：Such as first aspect and first aspect are realized when the computer program is executed by processor, and any one can
Described in the embodiment of energy the step of method.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages：
In the embodiment of the present invention, the current display interface image of virtual desktop will can be stored in buffer zone in advance,
When recognizing sectional drawing process, screenshot capture can be intercepted and captured, and processing is filtered to screenshot capture, sectional drawing process is generated
In screenshot capture, part removal identical with the display interface image in buffer zone generates masked images, will be in sectional drawing process
The original screenshot capture generated replaces with masked images, prevents virtual desktop image by screenshotss, reduces the wind of information leakage
Danger.
Description of the drawings
Fig. 1 is a kind of one embodiment schematic diagram of the anti-screenshotss method of virtual desktop in the embodiment of the present invention；
Fig. 2 is a kind of another embodiment schematic diagram of the anti-screenshotss method of virtual desktop in the embodiment of the present invention；
When Fig. 3 is allows screenshotss in a kind of anti-screenshotss method of virtual desktop in the embodiment of the present invention, cut in local client
Shield effect diagram；
When Fig. 4 is forbids screenshotss in a kind of anti-screenshotss method of virtual desktop in the embodiment of the present invention, cut in local client
Shield effect diagram；
Fig. 5 is a kind of one embodiment schematic diagram of the anti-screen-cutting system of virtual desktop in the embodiment of the present invention；
Fig. 6 is a kind of another embodiment schematic diagram of the anti-screen-cutting system of virtual desktop in the embodiment of the present invention；
Fig. 7 is a kind of another embodiment schematic diagram of the anti-screen-cutting system of virtual desktop in the embodiment of the present invention；
Fig. 8 is Computer device one embodiment schematic diagram of the embodiment of the present invention.
Specific implementation mode
An embodiment of the present invention provides a kind of anti-screenshotss method of virtual desktop, system and relevant apparatus, virtual for preventing
Desktop picture reduces the risk of information leakage by screenshotss.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
Term " first ", " second ", " third " in description and claims of this specification and above-mentioned attached drawing, "
Four " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so that the embodiments described herein can be in addition to illustrating or describing herein
Sequence other than appearance is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that covering is non-exclusive
Include to be not necessarily limited to clearly arrange for example, containing the process of series of steps or unit, method, system, product or equipment
Those of go out step or unit, but may include not listing clearly or solid for these processes, method, product or equipment
The other steps or unit having.
Virtual desktop in the embodiment of the present invention can be based on Remote Desktop Protocol pattern (RDP, Remote Desktop
Protocol), VDI virtual desktops infrastructure mode (Virtual Desktop Infrastructure, abbreviation VDI), VOI
The virtual table that the prior arts such as virtual desktop infrastructure mode (Virtual OS Infrastructure, abbreviation VOI) are realized
Face, specific virtual desktop are realized framework, are not limited herein.
In order to make it easy to understand, the detailed process in the embodiment of the present invention is described below, referring to Fig. 1, of the invention
A kind of one embodiment of the anti-screenshotss method of virtual desktop may include in embodiment：
101, the current display interface image of virtual desktop is stored in buffer zone, when the display interface of virtual desktop is sent out
When changing, the display interface image in updating cache in real time region；
In the embodiment of the present invention, screenshotss are carried out to the display interface of virtual desktop in order to prevent, it is necessary first to obtain virtual
The current display interface image of desktop.
When user is during the client of local terminal opening virtual desktop uses virtual desktop, virtual desktop client can
The current display interface image of virtual desktop is stored in buffer zone, and the display interface of virtual desktop is monitored in real time, when
When the display interface of virtual desktop changes, the display interface image in updating cache in real time region.For example, user is virtual
An Application Program Interface is opened in desktop, causes the current display interface of virtual desktop to change, virtual desktop client
It can be by the current display interface image update of the virtual desktop after variation in buffer zone.
102, when recognizing target program calling image API, the sectional drawing process during monitoring image API Calls, and will
In the screenshot capture that sectional drawing process generates, part removal identical with the display interface image in buffer zone generates shielding figure
Picture；
There are two types of modes for existing scheme screenshotss scheme, and one is the API provided by operating system to carry out obtaining screen section
Figure, a kind of this method is more common, because unrelated with video card hardware；Another kind is to obtain screen using the api interface of video card manufacturer
Curtain sectional drawing, this mode is related to specific video card, and supports advanced function.It, can be right in the embodiment of the present invention
Two kinds of screenshotss modes need the image api interface used to be monitored, when recognizing target program calling image API,
Each process that may further be during monitoring image API Calls, to determine whether there is sectional drawing process.
If detecting the presence of sectional drawing process, need to be filtered processing to the screenshot capture generated in sectional drawing process, have
Body can be by screenshot capture that sectional drawing process generates, part removal identical with the display interface image in buffer zone,
Generate masked images.
Optionally, as a kind of possible embodiment, in the embodiment of the present invention, the client control image API Calls phase
Between sectional drawing process, and the detailed process of screenshot capture for filtering the generation of sectional drawing process is：
It whether there is sectional drawing process during identifying image API Calls by API HOOK technologies or filtration drive technology；
If there are sectional drawing process, in the screenshot capture that sectional drawing process is generated, with the display interface figure in buffer zone
As the removal of identical part, masked images are generated.
Wherein API HOOK can change the original function of a system API, and basic method is exactly to be obtained by HOOK
The api function entrance changed to needs changes its address and is directed toward new customized function.Filtration drive is a kind of optional
Driver be attached to normal device driving above, the behavior for adding or changing equipment, specific API HOOK and mistake
Filter driving realization principle is the prior art, is not repeated herein.
103, the original screenshot capture generated in sectional drawing process is replaced with into masked images.
In the screenshot capture for generating sectional drawing process, part identical with the display interface image in buffer zone is gone
It removes, after generation masked images, so that it may the original screenshot capture generated in sectional drawing process is replaced with masked images, change
The implementing result of sectional drawing process has achieved the purpose that prevent from carrying out screenshotss to the display interface of virtual desktop.
In the embodiment of the present invention, the current display interface image of virtual desktop will can be stored in buffer zone in advance,
When recognizing sectional drawing process, screenshot capture can be intercepted and captured, and processing is filtered to screenshot capture, sectional drawing process is generated
In screenshot capture, part removal identical with the display interface image in buffer zone generates masked images, will be in sectional drawing process
The original screenshot capture generated replaces with masked images, prevents virtual desktop image by screenshotss, reduces the wind of information leakage
Danger.
On the basis of above-mentioned embodiment shown in FIG. 1, in practice, for whether allowing to virtual desktop image
Carrying out screenshotss can be managed according to the setting of administrator, specific referring to Fig. 2, a kind of virtual table in the embodiment of the present invention
Another embodiment of the anti-screenshotss method in face may include：
201, the selection instruction of user is received, selection instruction indicates whether to allow screenshotss；
Virtual desktop during use, the client of virtual desktop can be given tacit consent into anti-screenshotss pattern, and execute such as Fig. 1
Shown step can also instruct according to the user's choice, choose whether to allow screenshotss.If selection instruction instruction allows screenshotss,
Other steps are then executed, for example, not executing following step 202 to 204, masked images is not made an amendment, target program is returned to；
If screenshotss are forbidden in selection instruction instruction, 202 to 204 are thened follow the steps.
202, the current display interface image of virtual desktop is stored in buffer zone, when the display interface of virtual desktop is sent out
When changing, the display interface image in updating cache in real time region；
203, when recognizing target program calling image API, the sectional drawing process during monitoring image API Calls, and will
In the screenshot capture that sectional drawing process generates, part removal identical with the display interface image in buffer zone generates shielding figure
Picture；
There are two types of modes for existing scheme screenshotss scheme, and one is the API provided by operating system to carry out obtaining screen section
Figure, a kind of this method is more common, because unrelated with video card hardware；Another kind is to obtain screen using the api interface of video card manufacturer
Curtain sectional drawing, this mode is related to specific video card, and supports advanced function.It, can be right in the embodiment of the present invention
Two kinds of screenshotss modes need the image api interface used to be monitored, when recognizing target program calling image API,
Each process that may further be during monitoring image API Calls, to determine whether there is sectional drawing process.
If detecting the presence of sectional drawing process, need to be filtered processing to the screenshot capture generated in sectional drawing process, have
Body can be by screenshot capture that sectional drawing process generates, part removal identical with the display interface image in buffer zone,
Generate masked images.
Optionally, as a kind of possible embodiment, in the embodiment of the present invention, the client control image API Calls phase
Between sectional drawing process, and the detailed process of screenshot capture for filtering the generation of sectional drawing process is：
It whether there is sectional drawing process during identifying image API Calls by API HOOK technologies or filtration drive technology；
If there are sectional drawing process, in the screenshot capture that sectional drawing process is generated, with the display interface figure in buffer zone
As the removal of identical part, masked images are generated.
Optionally, as a kind of possible embodiment, in the embodiment of the present invention, screen that client generates sectional drawing process
In curtain sectional drawing, part removal identical with the display interface image in buffer zone can specifically include：
In the screenshot capture that sectional drawing process is generated, part identical with the display interface image in buffer zone carries out horse
Sai Ke processing；
Or, in the screenshot capture that sectional drawing process is generated, part identical with the display interface image in buffer zone is filled out
Fill the picture for solid color.
In order to make it easy to understand, Fig. 3 and Fig. 4 is please referred to, when user uses void using the client of the ends PC opening virtual desktop
When quasi- desktop system, when using local screenshotss function, when virtual desktop client allows screenshotss, screenshotss image as shown in figure 3,
Task manager interface and the current display interface of virtual desktop of PC local sides are wherein contained in screenshotss image；When virtual table
When face client forbids screenshotss, screenshotss image is as shown in figure 4, wherein contain the task manager of PC local sides in screenshotss image
Interface and virtual desktop shield interface, wherein shield interface are uniformly filled with black.
204, the original screenshot capture generated in sectional drawing process is replaced with into masked images.
Step 202 in the present embodiment, the content described in 204 respectively with the step in above-mentioned embodiment shown in FIG. 1
Content described in rapid 101,103 is similar, referring specifically to step 101,103, is not repeated herein.
It is understood that in various embodiments of the present invention, the size of the serial number of above steps is not meant to
The execution sequence of the priority of execution sequence, each step should be determined by its function and internal logic, without coping with the embodiment of the present invention
Implementation process constitute any restriction.
It is understood that the sectional drawing process involved by the embodiment of the present invention can be application triggers, it can also
It is process of the realization with sectional drawing function that kernel-driven module is triggered.In order to which monitoring filtering uses in this patent
APIHOOK technologies, as long as it can also be other technologies realizations, such as the filtration drive of kernel that can reach this purpose.This is specially
Sharp scheme neutralization operation system is unrelated, and the system of client and server-side can be isomery.
The anti-screenshotss method of virtual desktop in the embodiment of the present invention is described in above-described embodiment, below will be to this hair
The anti-screen-cutting system of virtual desktop in bright embodiment is described, referring to Fig. 5, a kind of virtual desktop is anti-in the embodiment of the present invention
One embodiment of screen-cutting system may include：
Memory module 501 works as virtual desktop for the current display interface image of virtual desktop to be stored in buffer zone
Display interface when changing, the display interface image in updating cache in real time region；
Monitoring module 502, when recognizing target program calling image API, for sectional drawing during monitoring image API Calls
Process, and in the screenshot capture that sectional drawing process is generated, part removal identical with the display interface image in buffer zone is raw
At masked images；
Replacement module 503, for the original screenshot capture generated in sectional drawing process to be replaced with masked images.
Optionally, as a kind of possible embodiment, referring to Fig. 6, anti-section of the virtual desktop in the embodiment of the present invention
Screen system can also include：
Receiving module 504, the selection instruction for receiving user, selection instruction indicate whether to allow screenshotss；
First drive module 505, if screenshotss are forbidden in selection instruction instruction, for masked images to be returned to target program；
Second drive module 506, if selection instruction instruction allows screenshotss, for will be original by what is generated in sectional drawing process
Screenshot capture returns to target program.
Optionally, as a kind of possible embodiment, referring to Fig. 7, anti-section of the virtual desktop in the embodiment of the present invention
Monitoring module 502 in screen system may include：
Monitoring unit 5021, for being during passing through API HOOK technologies or filtration drive technology identification image API Calls
It is no that there are sectional drawing processes；
Screen unit 5022, if there are sectional drawing process, in the screenshot capture for generating sectional drawing process, with buffer zone
In the removal of display interface image identical part, generate masked images.
Optionally, as a kind of possible embodiment, in the anti-screen-cutting system of virtual desktop in the embodiment of the present invention
Screen unit 5022 includes：
First shielding subelement 50221, in the screenshot capture for generating sectional drawing process, with the display in buffer zone
The identical part of interface image carries out mosaic processing；
Secondary shielding subelement 50222, in the screenshot capture for generating sectional drawing process, with the display in buffer zone
The identical picture being partially filled with as solid color of interface image.
In the embodiment of the present invention, the current display interface image of virtual desktop will can be stored in buffer zone in advance,
When recognizing sectional drawing process, screenshot capture can be intercepted and captured, and processing is filtered to screenshot capture, sectional drawing process is generated
In screenshot capture, part removal identical with the display interface image in buffer zone generates masked images, will be in sectional drawing process
The original screenshot capture generated replaces with masked images, prevents virtual desktop image by screenshotss, reduces the wind of information leakage
Danger.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Above from the angle of modular functionality entity to the vehicle accessory data for block chain in the embodiment of the present invention
Processing unit is described, and the computer installation in the embodiment of the present invention is described from the angle of hardware handles below：
The embodiment of the present invention additionally provides a kind of computer installation 8, as shown in figure 8, for convenience of description, illustrate only with
The relevant part of the embodiment of the present invention, particular technique details do not disclose, please refer to present invention method part.The calculating
Machine device 8 refers generally to the stronger computer equipment of the processing capacities such as server.
With reference to figure 8, computer installation 8 includes：Power supply 810, memory 820, processor 830, wired or wireless network connect
Mouthfuls 840 and storage in memory and the computer program that can run on a processor.When processor executes computer program
Realize the step in above-mentioned each vehicle OBD interface managerial method embodiments, such as in step 101 to 103, Fig. 2 shown in FIG. 1
Step 201 is to 204.Alternatively, processor realizes each module in above-mentioned each device embodiment or unit when executing computer program
Function.
Illustratively, computer program can be divided into one or more module/units, one or more of moulds
Block/unit is stored in the memory, and is executed by the processor, to complete the present invention.One or more of moulds
Block/unit can be the series of computation machine program instruction section that can complete specific function, the instruction segment by describe it is described based on
Implementation procedure of the calculation machine program in the computer installation.
It will be understood by those skilled in the art that structure shown in Fig. 6 does not constitute the restriction to computer installation 8, it can
To include either combining certain components or different components arrangement, such as the calculating than illustrating more or fewer components
Machine device can also include input-output equipment, bus etc..
Alleged processor can be central processing unit (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor
Deng the processor is the control centre of the computer installation, utilizes various interfaces and the entire computer installation of connection
Various pieces.
The memory can be used for storing the computer program and/or module, and the processor is by running or executing
Computer program in the memory and/or module are stored, and calls the data being stored in memory, described in realization
The various functions of computer installation.The memory can include mainly storing program area and storage data field, wherein storage program
It area can storage program area, the application program (such as sound-playing function, image player function etc.) needed at least one function
Deng；Storage data field can be stored uses created data (such as audio data, phone directory etc.) etc. according to mobile phone.In addition,
Memory may include high-speed random access memory, can also include nonvolatile memory, such as hard disk, memory, grafting
Formula hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card
(Flash Card), at least one disk memory, flush memory device or other volatile solid-state parts.
If the integrated module/unit of the computer installation is realized in the form of SFU software functional unit and as independent
Product is sold or in use, can be stored in a computer read/write memory medium.Based on this understanding, the present invention is real
All or part of flow in existing above-described embodiment method, can also instruct relevant hardware come complete by computer program
At the computer program can be stored in a computer readable storage medium, which is being executed by processor
When, it can be achieved that the step of above-mentioned each embodiment of the method.Wherein, the computer program includes computer program code, described
Computer program code can be source code form, object identification code form, executable file or certain intermediate forms etc..The meter
Calculation machine readable medium may include：Can carry the computer program code any entity or device, recording medium, USB flash disk,
Mobile hard disk, magnetic disc, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory
Device (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It needs to illustrate
It is that the content that the computer-readable medium includes can be fitted according to legislation in jurisdiction and the requirement of patent practice
When increase and decrease, such as in certain jurisdictions, according to legislation and patent practice, computer-readable medium does not include that electric carrier wave is believed
Number and telecommunication signal.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments, it should be understood that disclosed system, device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, only a kind of
Division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of device or unit,
Can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, and be shown as unit
Component may or may not be physical unit, you can be located at a place, or may be distributed over multiple networks
On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
More than, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to aforementioned reality
Applying example, invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each
Technical solution recorded in embodiment is modified or equivalent replacement of some of the technical features；And these are changed
Or it replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of anti-screenshotss method of virtual desktop, which is characterized in that including：
The current display interface image of virtual desktop is stored in buffer zone, when the display interface of virtual desktop changes
When, the display interface image in buffer zone described in real-time update；
When recognizing target program and calling image API, the sectional drawing process during described image API Calls is monitored, and by sectional drawing
In the screenshot capture that process generates, part removal identical with the display interface image in the buffer zone generates shielding figure
Picture；
The original screenshot capture generated in sectional drawing process is replaced with into the masked images.
2. according to the method described in claim 1, it is characterized in that, further including：
The selection instruction of user is received, the selection instruction indicates whether to allow screenshotss；
If screenshotss are forbidden in the selection instruction instruction, the masked images are returned into the target program；
If the selection instruction instruction allows screenshotss, the screenshot capture is returned into the target program.
3. according to the method described in claim 2, it is characterized in that, it is described monitoring described image API Calls during sectional drawing into
Journey, and in the screenshot capture that sectional drawing process is generated, part removal identical with the display interface image in the buffer zone,
Masked images are generated, including：
It whether there is sectional drawing process during identifying image API Calls by API HOOK technologies or filtration drive technology；
If there are sectional drawing process, in the screenshot capture that sectional drawing process is generated, with the display interface figure in the buffer zone
As the removal of identical part, masked images are generated.
4. according to the method in any one of claims 1 to 3, which is characterized in that the screen for generating sectional drawing process
In sectional drawing, part removal identical with the display interface image in the buffer zone, including：
In the screenshot capture that sectional drawing process is generated, part identical with the display interface image in the buffer zone carries out horse
Sai Ke processing；
Or, in the screenshot capture that sectional drawing process is generated, part identical with the display interface image in the buffer zone is filled out
Fill the picture for solid color.
5. a kind of anti-screen-cutting system of virtual desktop, which is characterized in that including：
Memory module, for the current display interface image of virtual desktop to be stored in buffer zone, when the display of virtual desktop
When interface changes, the display interface image in buffer zone described in real-time update；
Monitoring module, when recognize target program call image API when, for sectional drawing during monitoring described image API Calls into
Journey, and in the screenshot capture that sectional drawing process is generated, part removal identical with the display interface image in the buffer zone,
Generate masked images；
Replacement module, for the original screenshot capture generated in sectional drawing process to be replaced with the masked images.
6. system according to claim 5, which is characterized in that further include：
Receiving module, the selection instruction for receiving user, the selection instruction indicate whether to allow screenshotss；
First drive module, if screenshotss are forbidden in selection instruction instruction, for the masked images to be returned to the target
Program；
Second drive module, if selection instruction instruction allows screenshotss, original screen for that will will be generated in sectional drawing process
Curtain sectional drawing returns to the target program.
7. system according to claim 6, which is characterized in that the monitoring module includes：
Monitoring unit is cut for whether there is during identifying image API Calls by API HOOK technologies or filtration drive technology
Figure process；
Screen unit, if there are sectional drawing process, in the screenshot capture for generating sectional drawing process, and in the buffer zone
The identical part removal of display interface image, generates masked images.
8. method according to any one of claims 5 to 7, which is characterized in that the screen unit includes：
First shielding subelement, in the screenshot capture for generating sectional drawing process, with the display interface in the buffer zone
The identical part of image carries out mosaic processing；
Secondary shielding subelement, in the screenshot capture for generating sectional drawing process, with the display interface in the buffer zone
The identical picture being partially filled with as solid color of image.
9. a kind of computer installation, which is characterized in that the computer installation includes processor, and the processor is deposited for executing
It is realized when the computer program stored in reservoir such as the step of any one of Claims 1-4 the method.
10. a kind of computer readable storage medium, is stored thereon with computer program, it is characterised in that：The computer program
It is realized when being executed by processor such as the step of any one of Claims 1-4 the method.
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