hdc (HDC) - input

Device context handle.

iIndex (ULONG) - input

Index value.

Index value of the returned handle in the range 0 - 3. A value of 1 can be used to get the associated AVIO presentation space handle.

pInstance (PVOID) - input

Pointer to instance data.

lFunction (ULONG) - input

High-order WORD=flags; low-order WORD=NGreGetHandle.

rc (LONG) - returns

Return code.

On completion, the graphics engine returns the handle requested hHandle), or GPI_ALTERROR if an error occurs.

Possible Errors Detected: When an error is detected, the graphics engine calls WinSetErrorInfo to post the condition. Reasons for failure of this function include:

PMERR_HDC_BUSY PMERR_INV_HDC

Refer to the "Error Explanations" section of the Presentation Manager Programming Reference for further explanation.