CN1235129C - How to display multiple windows in exclusive mode - Google Patents

Abstract

A method for displaying multiple windows in exclusive mode is used to display multiple windows on a main window in exclusive mode, which at least includes the following steps: checking the characteristics of the relevant hardware; confirming that the associated hardware can support displaying a plurality of windows; building a clipboard object; and displaying the image of the window through the clipboard. The invention is characterized in that a clipboard is established and set as an object of a main window, an image of a window to be displayed is added into the clipboard, and the image of the window is displayed on the main window through the clipboard.

Description

How to display multiple windows in exclusive mode

technical field

The invention relates to a method for displaying multiple windows, which is applied to a Windows system, in particular to a method for displaying multiple windows in an exclusive mode.

Background technique

At present, games or multimedia programs under the Windows system must enjoy all the resources of the system in order to have the best performance when they are executed, that is, they must be displayed in an exclusive mode. For example, most of the multimedia programs are developed and used on the DirectX platform now, in order to improve the running speed of the multimedia programs, and in terms of images, the processing of the display results is mainly realized by using the DirectDraw program in the DirectX platform.

Normally, DirectDraw can use window mode or exclusive mode (exclusive). If you use window mode, other windows can be displayed normally, but if you use exclusive mode, due to the window display update, other windows are only displayed for a moment. It is immediately replaced by the update, that is, other windows other than the main window cannot be displayed normally in exclusive mode.

For example, some games are most commonly displayed on the full screen in the exclusive mode. Although the game can use all the resources of the system to display it with the best effect, if you want to input Chinese characters in the game, Then the input method must be switched, but because of the relationship of the exclusive mode, the window of the input method cannot be displayed, and the input method window cannot be displayed, so it cannot be used normally, which brings considerable inconvenience to the user.

Contents of the invention

The purpose of the present invention is to provide a method for displaying multiple windows in an exclusive mode, which can display other windows other than the main window in the exclusive mode, and at the same time enjoy the powerful functions of developing and running programs in the exclusive mode, so as to solve the above problems There are problems in the technology.

The above-mentioned purpose of the present invention is achieved in that a method for displaying multiple windows in an exclusive mode is used to display a window on a main window in an exclusive mode, and it is characterized in that the method at least includes the following steps: checking the relevant hardware Feature flag; confirm that the relevant hardware can support displaying multiple windows; confirm that the main window has no clipboard; create a clipboard; set the clipboard as an object of the main window; set the clipboard to the image of the display screen buffer; and display the image of the window via the clipboard.

The method for displaying multiple windows under the exclusive mode of the present invention first checks the characteristics of the relevant hardware, whether the relevant hardware has the characteristics of supporting displaying multiple windows, if confirmed, then establishes a clipboard, hangs the clipboard on the main window, In this way, images of other windows to be displayed on the main window are also added to the clipboard, and then images of other windows are displayed on the main window with the help of the clipboard; if it is judged that the display of other windows other than the main window cannot be supported, the required For the position and size of the window displayed on the main window, create a window graphic from the display screen, paste the image of the window to be displayed on the main window graphic, and then display the window graphic. Multiple windows are displayed in the exclusive mode, and the resource usage in the exclusive mode can be used at the same time.

Description of drawings

Fig. 1 is a schematic flow chart of the steps of the present invention;

Fig. 2 is a functional block diagram of the present invention;

Fig. 3 is the schematic flow chart of the step of setting up the clipboard object of the present invention;

FIG. 4 is a schematic diagram of creating a window graph in the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings.

According to the method for displaying multiple windows in exclusive mode disclosed by the present invention, please refer to Fig. 1, a main window is currently in exclusive mode (this window is called main window, hereinafter only referred to as this), and another window can Displayed on the main window, at first check the characteristics of the relevant hardware (step 101), and judge whether the current relevant display hardware device can support multi-window display (step 102), if it can support, then utilize the mode of clipboard (Clipper), also It is to first create a clipboard object (step 103), and then display the window to be displayed through the created clipboard object (step 104). If it cannot be supported, then re-establish a window graphic corresponding to the window to be displayed (step 105), and display the window to be displayed by means of this window graphic (step 106).

Then for further detailed description, please refer to Fig. 2 simultaneously, at first utilize hardware characteristic inspection module 10 to check relevant hardware characteristic, to judge whether relevant hardware can support the display of other windows, then, if can support, then utilize the mode of clipboard, Establish the clipboard object, as shown in Figure 3, at first check whether there are other clipboards in the main window, (the clipboard (Clipper) is an object that is often used in multimedia programs, it allows some valid parts of the image to be clipped to On other images, for example, in a multimedia game, if you want to display a sprite entering from the border of the screen, you don’t want the sprite to appear on the screen at once, but to move slowly from the border of the screen to the middle of the screen smoothly. If there is no clipboard object, it is necessary to include the limit bit block operation to protect the surface memory.) Judging if the main window has a clipboard, then utilize this clipboard to display the window image to be displayed (step 205). If do not have other clipboard, then utilize clipboard module 15 to set up a clipboard (step 202), and this clipboard is set as an object (step 203) of main window, just hang clipboard to main window Then, the clipboard is set in the image buffer of the display screen (step 204), that is, the establishment of the clipboard object has been completed, then the window display module 16 is utilized to paste the window graphics to be displayed on the clipboard, and its Display on the display screen (step 104) (for example, the function FlipToGDISurface() can be used to write the content of the clipboard to the surface of the GDI and display it on the display screen).

On the other hand, if the relevant hardware does not support the display of other windows, then utilize the establishment of a window graphic related to the window image to be displayed to complete the display of multiple windows (step 105), as shown in Figure 4, at first obtain the window image to be displayed The size and position (step 301) of the window can be obtained by the handle of the window, and then extract the device context (DeviceContext; DC) (step 302) of the display screen (each relevant hardware has a corresponding device context (DC) ), and obtain the device description table of the display screen, you can use this display screen to display the graphics you want to display, and you can also draw arbitrarily on the display screen, because it is already a well-known technology, so I won’t repeat the working principle), Now, utilize the window figure building module 13 to set up a window figure (step 303), and utilize the window figure processing module 14 to place the established window figure in the image buffer of the display screen (step 304), so that it can be displayed Come out; Now, release the device context of the display screen (step 305), then, judge whether the display screen changes (step 306), if it occurs, it means that the window graphics have changed, and then re-establish a window graphics. If there is no change in the main window on the display screen, then utilize the window display module 16 to paste the window image that you want to display on the established main display graphics, and then display it by the main display graphics (step 106) .

With the help of the above two methods, in the exclusive mode, in addition to the normal display of the main window, other windows can also be displayed, and at the same time enjoy the powerful resource utilization in the exclusive mode.

The present invention is a method for displaying multiple windows in an exclusive mode. It is used to display a window on a main window in an exclusive mode. First, check the characteristic mark of the relevant hardware displayed in the main window to see if there is support for displaying other windows. If it is confirmed that it can be supported, create a clipboard, hang the clipboard on the main window, and add other window images to be displayed on the main window into the clipboard, and then use the clipboard to save the image Displayed on the main window; if it cannot support the display of other windows, obtain the position and size of other windows to be displayed, create a window graphic, paste the image of the window to be displayed into the main display graphic, and then paste the main display It is only necessary to display the graphics. In this way, images of multiple windows can be displayed in the exclusive mode, and resources can be used in the exclusive mode.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the implementation scope of the present invention; all equivalent changes and modifications made according to the claims of the present invention are covered by the claims of the present invention.

Claims (12)

1. A method for displaying multiple windows in an exclusive mode, for displaying a window on the main window of an exclusive mode, characterized in that the method at least comprises the following steps: Check the feature flags of the relevant hardware; Confirm that the relevant hardware can support displaying multiple windows; Confirm that the main window has no clipboard; create a clipboard; Set the clipboard as an object of the main window; setting the clipboard in the image buffer of the display screen; and The image of the window is displayed in the main window through the clipboard. 2. The method for displaying multiple windows in exclusive mode as claimed in claim 1, wherein the step of confirming that the main window has no clipboard further comprises a step of judging whether the main window has a clipboard. 3. The method for displaying multiple windows in exclusive mode as claimed in claim 2, characterized in that the step of judging whether the main window has a clipboard, if the main window has a clipboard, then use the clipboard to display the The image of the window. 4. The method for displaying multiple windows in exclusive mode according to claim 1, wherein the step of displaying the image of the window through the clipboard is to paste the image of the window on the clipboard for display. 5. The method for displaying multiple windows in exclusive mode according to claim 1, characterized in that it comprises a step of judging whether the related hardware supports displaying multiple windows. 6. The method for displaying multiple windows in exclusive mode as claimed in claim 5, characterized in that the step of judging whether the related hardware can support multiple windows display, if judged as no, then perform the following steps: establishing a window graphic relative to the window to be displayed; and The image of the window is displayed through the window graphic. 7. The method for displaying multiple windows in exclusive mode as claimed in claim 6, wherein the step of establishing a window graphic relative to the window to be displayed comprises: Get the position and size of the window; Extracting a device context of a display screen; Create a window graph; place the window graphics in an image buffer; and Release the device context. 8. The method for displaying multiple windows in exclusive mode as claimed in claim 7, wherein the step of obtaining the position and size of the window is obtained by using the identification value of the window. 9. The method for displaying multiple windows in exclusive mode as claimed in claim 7, characterized in that in the step of establishing a window graphic, the character image is initialized at the same time. 10. The method for displaying multiple windows in exclusive mode according to claim 7, characterized in that after the step of releasing the device context, a step of judging whether the main window has changed is further included. 11. The method for displaying multiple windows in exclusive mode as claimed in claim 10, characterized in that the step of judging whether the main window has changed, if judged to be no, then execute the step of displaying the image of the window through the window graphics If it is judged to be yes, then re-establish a window graphic. 12. The method for displaying multiple windows in exclusive mode as claimed in claim 6, characterized in that the step of displaying the image of the window through the window graphic is to paste the image of the window on the main display graphic and display it .

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