Function name: BitBlt

Defined in : GDI32

Requirements : Windows NT 3.1 or later; Windows 95 or later

Declaration:

Declare Function BitBlt Lib "gdi32" Alias "BitBlt" (ByVal hDestDC As Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long

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: 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.)

Returns:

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.

Related functions:

Examples:

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