WinMapWindowPoints - Parameters

hwndFrom (HWND) - input

Handle of the window from whose coordinates points are to be mapped.

HWND_DESKTOP

Points are mapped from screen coordinates
Other
Points are mapped from window coordinates.

hwndTo (HWND) - input

Handle of the window to whose coordinates points are to be mapped.

HWND_DESKTOP

Points are mapped into screen coordinates
Other
Points are mapped into window coordinates.

prgptl (PPOINTL) - in/out

Points to be mapped to the new coordinate system.

cwpt (LONG) - input

Number of points to be mapped.

prgptl can be a RECTL structure, in which case this parameter should have the value 2.

Note: This is not supported in all languages.

rc (BOOL) - returns

Success indicator.

TRUE

Successful completion
FALSE
Error occurred.

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