public:
     virtual bool __fastcall EnumDisplayModes( dword pFlags, TDDSurfaceDesc* pSurfaceDesc, void* pContext );

• Description
• Parameters
• See Also

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The TDx_Draw::EnumDisplayModes method will enumerate display modes that are available from the current video card and monitor combination.

Calling this method triggers the TDx_Draw::OnEnumDisplayModes() event.

If this method call fails, the one of the following values will be returned:
DDERR_INVALIDOBJECT
DDERR_INVALIDPARAMS

Flags
The Flags parameter defines flags indicating whether refresh rate and mode13 are taken into account when enumeration is being performed.
Typically, this parameter is set to 0 to ignore extra options.
The described effect applies when the flag is set.
DDEDM_REFRESHRATES
Enumeration is to define display modes that have different refresh rates as being unique.

DDEDM_STANDARDVGAMODES
Enumerate Mode 13 as well as Mode X.
Refer to the DirectX SDK for details on "Mode X and Mode 13 Display Modes" limitations.

SurfaceDesc
The SurfaceDesc parameter references a TDDSurfaceDesc component to be compared to available display modes.
Set this parameter to NULL to enumerate all display modes.

Context
The Context parameter references an application defined object to be passed to the callback function for each display mode enumerated.
Set this parameter to NULL if you do not need to pass any further information to the TDx_Draw::EnumModesCallback() event.

TDx_Draw
TDDSurfaceDesc
TDx_Draw::OnEnumDisplayModes()