hEngObject (ULONG) - input

Handle of a DC or bit map.

ulIndex (ULONG) - input

Has the following settings:

Index=0

hEngObject is a DC handle
Index=1
hEngObject is a bit-map handle

hdc (HDC) - input

Device context handle, which identifies the calling DC.

rc (LONG) - returns

Return codes.

If successful, the function returns the instance pointer associated with the object DC or the presentation driver's handle to the object bit map. If an error is detected, the function returns GPI_ALTERROR.

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