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CImage::Create

Creates a CImage bitmap and attach it to the previously constructed CImage object.

BOOL Create( 
   int nWidth, 
   int nHeight, 
   int nBPP, 
   DWORD dwFlags = 0  
) throw( );

nWidth

The width of the CImage bitmap, in pixels.

nHeight

The height of the CImage bitmap, in pixels. If nHeight is positive, the bitmap is a bottom-up DIB and its origin is the lower left corner. If nHeight is negative, the bitmap is a top-down DIB and its origin is the upper left corner.

nBPP

The numbers of bits per pixel in the bitmap. Usually 4, 8, 16, 24, or 32. Can be 1 for monochrome bitmaps or masks.

dwFlags

Specifies if the bitmap object has an alpha channel. Can be a combination of zero or more of the following values:

  • createAlphaChannel   Can only be used if nBPP is 32, and eCompression is BI_RGB. If specified, the created image has an alpha (transparency) value for each pixel, stored in the 4th byte of each pixel (unused in a non-alpha 32-bit image). This alpha channel is automatically used when calling CImage::AlphaBlend.

Note Note

In calls to CImage::Draw, images with an alpha channel are automatically alpha blended to the destination.

Nonzero if successful; otherwise 0.

Header: atlimage.h

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