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The DDEnumCallbackExfunction is an application-defined callback function for the DirectDrawEnumerateExfunction.
BOOL WINAPI DDEnumCallbackEx( GUID FAR * lpGUID , LPSTR lpDriverDescription , LPSTR lpDriverName , LPVOID lpContext , HMONITOR hm );
Parameters
- lpGUID
- Address of the unique identifier of the DirectDraw object.
- lpDriverDescription
- Address of a string containing the driver description.
- lpDriverName
- Address of a string containing the driver name.
- lpContext
- Address of an application-defined structure that will be passed to the callback function each time the function is called.
- hm
- Handle to the monitor associated with the enumerated DirectDraw
object. This parameter will be NULL when the enumerated DirectDraw
object is for the primary device, a non-display device (such as a
3-D accelerator with no 2-D capabilities), and for devices not
attached to the desktop.
Return Values
The callback function returns non-zero to continue the enumeration.
The callback function returns zero to stop it.
Remarks
You can use the LPDDENUMCALLBACKEXdata type to declare a variable that contains a pointer to this callback function.
If UNICODE is defined, the string values will be returned as type LPWSTRrather than LPSTR.
Requirements
Runs on Versions Declared in Link to Windows CE OS 2.12 or later. Version 2.12 requires DXPAK 1.0 or later. ddraw.h user-defined