The IDirectDraw2::SetDisplayMode method sets the mode of the display-device hardware.
HRESULT SetDisplayMode(
DWORD dwWidth,
DWORD dwHeight,
DWORD dwBPP,
DWORD dwRefreshRate,
DWORD dwFlags
);
If the method succeeds, the return value is DD_OK.
If the method fails, the return value may be one of the following error values:
DDERR_GENERIC |
DDERR_INVALIDMODE |
DDERR_INVALIDOBJECT |
DDERR_INVALIDPARAMS |
DDERR_LOCKEDSURFACES |
DDERR_NOEXCLUSIVEMODE |
DDERR_SURFACEBUSY |
DDERR_UNSUPPORTED |
DDERR_UNSUPPORTEDMODE |
DDERR_WASSTILLDRAWING |
If another application changes the display mode, the primary surface will be lost and will return DDERR_SURFACELOST until it is recreated to match the new display mode.
As part of the IDirectDraw interface, this method did not include the dwRefreshRate and dwFlags parameters.
Windows NT: Use version 4.0 or later.
Windows: Use Windows 95 or later. Available as a redistributable for Windows 95.
Windows CE: Unsupported.
Header: Declared in ddraw.h.
Import Library: Use ddraw.lib.
IDirectDraw2::RestoreDisplayMode, IDirectDraw2::GetDisplayMode, IDirectDraw2::EnumDisplayModes, IDirectDraw2::SetCooperativeLevel, Cooperative Levels and Display Modes with IDirectDraw2, Setting Display Modes