안녕하세요. 최용일입니다...



델파이의 Windows SDK Help를보시면 다 나오는데.... 쩝



TCanvas.Handle, TBitmap.Handle등은 윈도우의 핸들이 아니라 DC(device context)값입니다.



hdcDest, hdcSrc에 작업할 DC를 넣어주시면 되구. 죄표값이야 다 아실테구...



dwRop는 어떻게 이동시키는가 하는 방식을 말합니다... SRCCOPY를 쓴다면 원본이미지가



그대로 사본이미지로 이동이 되죠...



BitBlt(Image1.Canvas.Handle,

0, 0,

Image1.Width, Image1.Height,

Image2.Canvas.Handle,

0, 0,

SRCCOPY);



Image1의 전체그림이 Image2의 (0, 0)에 그대로 복사되어 들어가는 예입니다.



he BitBlt function performs a bit-block transfer of the color data corresponding to a rectangle of pixels from the specified source device context into a destination device context.



BOOL BitBlt(



HDC hdcDest, // handle to destination device context

int nXDest, // x-coordinate of destination rectangle's upper-left corner

int nYDest, // y-coordinate of destination rectangle's upper-left corner

int nWidth, // width of destination rectangle

int nHeight, // height of destination rectangle

HDC hdcSrc, // handle to source device context

int nXSrc, // x-coordinate of source rectangle's upper-left corner

int nYSrc, // y-coordinate of source rectangle's upper-left corner

DWORD dwRop // raster operation code

);



Parameters



hdcDest



Identifies the destination device context.



nXDest



Specifies the logical x-coordinate of the upper-left corner of the destination rectangle.



nYDest



Specifies the logical y-coordinate of the upper-left corner of the destination rectangle.



nWidth



Specifies the logical width of the source and destination rectangles.



nHeight



Specifies the logical height of the source and the destination rectangles.



hdcSrc



Identifies the source device context.



nXSrc



Specifies the logical x-coordinate of the upper-left corner of the source rectangle.



nYSrc



Specifies the logical y-coordinate of the upper-left corner of the source rectangle.



dwRop



Specifies a raster-operation code. These codes define how the color data for the source rectangle is to be combined with the color data for the destination rectangle to achieve the final color.

The following list shows some common raster operation codes:



Value Description

BLACKNESS Fills the destination rectangle using the color associated with index 0 in the physical palette. (This color is black for the default physical palette.)

DSTINVERT Inverts the destination rectangle.

MERGECOPY Merges the colors of the source rectangle with the specified pattern by using the Boolean AND operator.

MERGEPAINT Merges the colors of the inverted source rectangle with the colors of the destination rectangle by using the Boolean OR operator.

NOTSRCCOPY Copies the inverted source rectangle to the destination.

NOTSRCERASE Combines the colors of the source and destination rectangles by using the Boolean OR operator and then inverts the resultant color.

PATCOPY Copies the specified pattern into the destination bitmap.

PATINVERT Combines the colors of the specified pattern with the colors of the destination rectangle by using the Boolean XOR operator.

PATPAINT Combines the colors of the pattern with the colors of the inverted source rectangle by using the Boolean OR operator. The result of this operation is combined with the colors of the destination rectangle by using the Boolean OR operator.

SRCAND Combines the colors of the source and destination rectangles by using the Boolean AND operator.

SRCCOPY Copies the source rectangle directly to the destination rectangle.

SRCERASE Combines the inverted colors of the destination rectangle with the colors of the source rectangle by using the Boolean AND operator.

SRCINVERT Combines the colors of the source and destination rectangles by using the Boolean XOR operator.

SRCPAINT Combines the colors of the source and destination rectangles by using the Boolean OR operator.

WHITENESS Fills the destination rectangle using the color associated with index 1 in the physical palette. (This color is white for the default physical palette.)





Return Values



If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.



^^ 항상 즐코하세요...



미얀이 wrote:

>

> API 함수중에서 bitblt 라고 있잖아요...

>

> 그거 함수 사용 방법과 예좀 들어주세요...

>

> 제발 이거만은 가르쳐 주세여...ㅠ.ㅠ

>

>