1.vbԴ?源码? bitblt
2.vb å¦ä½ç¨BitBltå¤å¶åå°ç¨åºå¾åï¼
vbԴ?? bitblt
function BitBlt(DestDC: HDC; X, Y, Width, Height: Integer; SrcDC: HDC; XSrc, YSrc: Integer; Rop: DWORD): BOOL; stdcall;
DestDC待画位图的handl,
x,y为待画位图的原点坐标,
Width,源码rbreak tb源码 Height为待画位图的区域大小,
SrcDC为被东东的源码斩幻想手游源码架设handl,
XSrc, YSrc为被画东东的原点坐标
width := Screen.Width div 8;
height := Screen.Height div 8;
BitBlt(bipmap.Canvas.Handle, 0, 0, width, height, DC, 1*width{ 原点x坐标}, 0*height{ 原点y坐标}, SRCCOPY);
vb å¦ä½ç¨BitBltå¤å¶åå°ç¨åºå¾åï¼
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Declare Function SetDIBitsToDevice Lib "gdi" Alias "SetDIBitsToDevice" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal dx As Long, ByVal dy As Long, ByVal SrcX As Long, ByVal SrcY As Long, ByVal Scan As Long, ByVal NumScans As Long, Bits As Any, BitsInfo As BITMAPINFO, ByVal wUsage As Long) As Long
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Longï¼æ§è¡æååè¿åæ«æ线çæ°éï¼é¶è¡¨ç¤ºå¤±è´¥ãä¼è®¾ç½®GetLastError
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dx,dy Longï¼ç¨ç®æ ç©å½¢ç设å¤åä½è¡¨ç¤ºç宽度åé«åº¦
SrcX,SrcY Longï¼ç¨è®¾å¤åæ 表示çæºç©å½¢å¨DIBä¸çèµ·ç¹
Scan Longï¼Bitsæ°ç»ä¸ç¬¬ä¸æ¡æ«æ线çç¼å·ãå¦BitsInfoä¹BITMAPINFOHEADERé¨åçbiHeightå段æ¯æ£æ°ï¼é£ä¹è¿æ¡æ«æ线就ä¼ä»ä½å¾çåºé¨å¼å§è®¡ç®ï¼å¦ææ¯è´æ°ï¼å°±ä»é¡¶é¨å¼å§è®¡ç®
NumScans Longï¼æ¬²å¤å¶çæ«æ线æ°é
Bits Anyï¼æåä¸ä¸ªç¼å²åºçæéãè¿ä¸ªç¼å²åºå å«äºä»¥DIBæ ¼å¼æè¿°çä½å¾æ°æ®ï¼è¿ç§æ ¼å¼æ¯ç±BitsInfoæå®ç
BitsInfo BITMAPINFOï¼å¯¹Bits DIBçæ ¼å¼åé¢è²è¿è¡æè¿°çä¸ä¸ªç»æ
wUsage Longï¼ä¸è¿°å¸¸æ°ä¹ä¸
DIB_PAL_COLORS é¢è²è¡¨æ¯ä¸ä¸ªæ´æ°æ°ç»ï¼å ¶ä¸å å«äºä¸ç®åéå ¥hdc设å¤åºæ¯çè°è²æ¿ç¸å ³çç´¢å¼
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