Gets the aspect ratio of a document. This is a parameter of the VAPIM_VIEW message.
#include <kvvapi.h> SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_GETASPECTRATIO, (LPARAM) (int*) lpnAspectRatio );
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The handle of the VAPI window. |
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A pointer to an integer that returns the aspect ratio:
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SendMessage() returns TRUE if the call succeeds, in which case lpnAspectRatio returns the aspect ratio.SendMessage() returns FALSE if the call fails (for example, if there are invalid arguments or if no document is open), in which case lpnAspectRatio is undefined.Use this message to set the state of an Aspect Ratio menu item or toolbar button.
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