gdiplus dll

Example image: ExampleCode: Uses gdiplus; Procedure injection (Sender: tobject); var graphics: igpgraphics; Image: igpimage; brush: igptexturebrush; rect: tgprect; begin chdir ('C: \ gdiplusimg \'); image: = tgpimage.create('houseandtree.gif '); brush: = tgptexturebrush. create (image); graphics: = tgpgraphics. create (handle); rect. initialize (image. width, image. height, image. width * 2, image. height * 2); graphics. clear (

The igplineargradientbrush. Blend attribute corresponds to an igpblend object; The two parameters in tgpblend. Create (factors, positions); are single-type arrays,Factors color intensity factor, positions is the ratio of location offset. For the gradient of the two colors, the above two arrays should be composed of three elements; the default effect is [0, 0.5, 1]. Test: TestCode: Uses gdiplus; procedure merge (Se

Test: TestCode: Uses gdiplus; Procedure tform1.formpaint (Sender: tobject); var graphics: igpgraphics; brush: drawing; rect: tgprect; Path: igpgraphicspath; begin graphics: = tgpgraphics. create (handle); rect. initialize (10, 10,180,100); Path: = tgpgraphicspath. create; Path. addellipse (rect); brush: = tgppathgradientbrush. create (PATH); brush. centercolor: = $ ff00ff00; brush. setsurroundcolors ([$ ff000000]); brush. setfocusscales (0

Uses gdiplus; Procedure tform1.formpaint (Sender: tobject); var graphics: igpgraphics; blackpen, greenpen: igppen; rect: tgprect; begin rect. initialize (20, 20, 80, 80); graphics: = tgpgraphics. create (handle); blackpen: = tgppen. create ($ ff000000, 1.5); greenpen: = tgppen. create ($ ff00ff00, 10); // greenpen. alignment: = penalignmentcenter; // This is the default value of graphics. drawrectangle (greenpen, rect); graphics. drawrectangle (blackp

Gdiplus provides bitmap support for reading and displaying GIF files. However, for some GIF pictures may appear between the frame interval of 0, for this reason, the default interval of 100ms in this case, do not know whether I did not find the right, there are suggestions welcome feedback. (Test in GIMP also will appear between the frame interval of 0, I think there should be a default value bar, 100ms effect can be accepted, for the moment borrowed)

);} Gdiplusshutdown (Gdiplustoken); return msg.lparam;} LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM WPARAM, LPARAM LPARAM) {LRESULT B; Paintstruct PS; HDC hdc;switch (message) {case wm_create://sendmessage (hwnd,wm_paint,0,0); Break;case wm_paint:{/////////////////// Gdiplus and GDI hybrid implement double buffering//////////////////////hdc HMEMDC = CreateCompatibleDC (M_HDC);//hbitmap Hmembitmap = CreateCompatibleBitmap (m_hDC, Default_

Today we found a gdiplus bug in framework2.0: Write the following code in the form onpaint event: Private void form1_paint (Object sender, painteventargs E){Pen P = new pen (color. Red );P. width = 1;P. dashstyle = dashstyle. Dot;P. dashoffset = 1;E. Graphics. drawline (p, new point (58, 8), new point (58, 9 ));P. Dispose ();} The system will throw an outofmemory exception from native's GDI plus code. To sum up, the conditions are as follows: 1. The l

auxiliary interfaces such as igpimageattributes. The igpcachedbitmap mentioned above does not have its own unique methods and attributes. The following example shows a comparison test between it and igpbitmap: // the test result is about three times faster than the bitmap. uses gdiplus; procedure merge (Sender: tobject); const COUNT = 1000; var graphic: igpgraphics; bitmap: igpbitmap; cachedbitmap: igpcachedbitmap; T1, T2, X, Y: Ca

Igpcolors is an interface that applies generic arrays to tgpcolor. It can be used when a set of colors is required. Of course, it is not difficult to use other methods. It is not important in the whole system. In this example, the 141 color constants in tgpcolor are loaded into an igpcolors. Take a look at these colors. Run: uses GdiPlus;procedure TForm1.FormPaint(Sender: TObject);const Count = 141;var Colors: IGPColors; Graphics: IGPGraphics;

igpmatrix. Reset method. Based on the function of each location, GDI + names each location as follows (the third column is meaningless and has no name ): Please wait until M11 M12 0 then m21 m22 0 then DX dy 1 then again later In the example above, the values of DX and Dy are not default, so the following test can be simpler: Uses gdiplus; Procedure tform1.formcreate (Sender: tobject); var matrix1, matrix2: igpmatrix; begin

Translatetransform: translation; Scaletransform: scale down; Rotatetransform: rotation; The multiplytransform method and the transform attribute can complete more transformations including the preceding transformations. The resettransform method is to reset the transform. These methods and attributes are available in igpgraphics. It is more appropriate to learn more in igpgraphics. Test: CodeFile: Unit unit1; interfaceuses windows, messages, sysutils, vari

The gammacorrection attribute is a Boolean value. The default value is false. If it is set to true, Grayscale Correction is enabled. The second image in the test diagram uses Grayscale Correction: TestCode: Uses gdiplus; Procedure tform1.formpaint (Sender: tobject); var graphics: igpgraphics; rect: tgprectf; brush: igplineargradientbrush; begin graphics: = tgpgraphics. create (canvas. handle); rect. initialize (20, 10,150,200); brush: = t

Test: TestCode: Uses gdiplus, kernel; Procedure tform1.formpaint (Sender: tobject); const C1 = $ ff000000; C2 = $ ffff0000; C3 = $ ffffff00; C4 = $ ffff0000; C5 = $ ff000000; vaR brush: igppathgradientbrush; rect: tgprect; Path: igpgraphicspath; colorblend: igpcolorblend; begin rect. initialize (10, 10,180,100); Path: = tgpgraphicspath. create; Path. addellipse (rect); brush: = tgppathgradientbrush. create (PATH); colorblend: = tgpcolorble

Set the compoundarray attribute of the paint brush to obtain the composite paint brush. The corresponding type is igpcompoundarray (igpcompoundarray = igparray If the compound paint brush is composed of x lines, the array requires 2 x elements. The elements represent the ratio of the starting and ending points of the line from the outer to the outer. Uses gdiplus; Procedure kernel (Sender: tobject); var graphics: igpgraphics; pen: igppen;

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This article is about how to invoke C (c + +)-written DLLs in a C # environment. "Reprint marked the source." First, the preferred creation of a C DLL project, production DLL files used for standby, steps are as follows: 1, VS2010 create C + + Project Select Win32 Application, the name is Createcdll, in the application settings interface to select the DLL, the fo

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1 :) download http://download.microsoft.com/download/1/3/4/1347C99E-9DFB-4252-8F6D-A3129A069F79/ILMerge.msi 2 :) start-run-cmd "->" cd c: \ Program Files \ Microsoft \ ilmerge" 3 :) 3.1 merge file1.dll and file2.dll to destination. dllIlmerge/ndebug/Target: dll/out: C: \ destination. dll/log c: \ file1.

First, call the dll and register it through the command: regsvr32 F:/CJZFProject/CJZFMain/bin/Debug/PayDll. DLL If you call the standard DLL Code as follows: Statement: [DllImport ("PayDll. dll", CharSet = CharSet. Auto)]Static extern int OpenComm (int a, int B ); Call: Int c = 10; int d = 20; Int num = OpenComm (c, d