Smart Device Functions:
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The BITMAPINFO structure defines the dimensions and color information for a DIB, it contains the members
BITMAPINFOHEADER structure (contains information about the dimensions of color format) and bmiColors which contains one of the following:
See MSDN Documentation for BITMAPINFO concerning specific details concerning structure members.
hSection is a handle to a file mapping object that the function will use to create the DIB and can be NULL. If hSection is not NULL, it must be a handle to a file mapping object created by calling the CreateFileMapping function (otherwise CreateDIBSection will fail). Moreover, the CreateDIBSection function will locate the bitmap’s bit values at offset dwOffset in the file mapping object referred to by hSection. An application can retrieve the hSection handle by calling the GetObject function with the HBITMAP returned by CreateDIBSection.
If hSection is NULL, the O/S will allocate memory for the DIB (CreateDIBSection will ignore the dwOffset parameter). An application cannot later obtain a handle to this memory: the dshSection member of the DIBSECTION structure will be NULL.
dwOffset specifies the offset from the beginning of the file mapping object referenced by hSection where storage for the bitmap’s bit values is to begin (ignored if hSection is NULL). The bitmap’s bit values are aligned on doubleword boundaries, so dwOffset must be a multiple of the size of a DWORD.
If the function succeeds, the return value is a handle to the newly created device-independent bitmap (and ppvBits will point to the bitmap’s bit values). If the function fails, the return value is NULL (and ptr ppvBits will be NULL). To get extended error information, call GetLastError.
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The CreateDIBSection function creates a Device Independent Bitmap (DIB) that applications can write to directly. The function gives you a pointer to the location of the bitmap bit values. You can supply a handle to a file-mapping object that the function will use to create the bitmap, or you can let the system allocate the memory for the bitmap.
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Defines the dimensions and color information for a DIB.
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