IG_dspl_mapmode

This function returns the current map mode and logical coordinate system where parameters such as ClipRect, DeviceRect and most others (except ImageRect) are stored.

Declaration:

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AT_ERRCOUNT ACCUAPI IG_dspl_mapmode_get( [IN] HIGEAR hIGear, [IN] DWORD dwGrpID, [OUT] LPDWORD lpdwMapMode, [OUT] LPAT_RECTANGLE lpViewport, [OUT] LPAT_RECTANGLE lpWindow );

Arguments:

Name	Type	Description
hIGear	HIGEAR	ImageGear handle of Image.
dwGrpID	DWORD	Identifier of group from which to get map mode options.
lpdwMapMode	LPDWORD	Pointer to the current value of option MapMode.
lpViewport	LPAT_RECTANGLE	Pointer to the current value of rectangle Viewport.
lpWindow	LPAT_RECTANGLE	Pointer to the current value of rectangle Window.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

All pixel formats supported by ImageGear for C and C++.

Sample:

None

Example:

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HIGEAR hIGear; /* HIGEAR handle of image / DWORD nGrpID; / display group identifier / DWORD dwMapMode; / map mode / AT_RECTANGLE Viewport; / view port values / AT_RECTANGLE Window; / window values */ ... IG_dspl_mapmode_get( hIGear, nGrpID, &dwMapMode, &Viewport, &Window ); SetMapMode( dwMapMode ); SetWindowOrgEx( hDC, Window.x, Window.y, NULL ); SetWindowExtEx( hDC, Window.width, Window.height, NULL ); SetViewportOrgEx( hDC, Viewport.x, Viewport.y, NULL ); SetViewportExtEx( hDC, Viewport.width, Viewport.height, NULL ); ...

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HIGEAR            hIGear;     /* HIGEAR handle of image  */ 
DWORD           nGrpID;     /* display group identifier */
DWORD           dwMapMode;    /* map mode   */
AT_RECTANGLE            Viewport;     /* view port values    */
AT_RECTANGLE             Window;       /* window values  */
 ...
IG_dspl_mapmode_get( hIGear, nGrpID, &dwMapMode, &Viewport, &Window );
SetMapMode( dwMapMode );
SetWindowOrgEx( hDC, Window.x, Window.y, NULL );
SetWindowExtEx( hDC, Window.width, Window.height, NULL );
SetViewportOrgEx( hDC, Viewport.x, Viewport.y, NULL );
SetViewportExtEx( hDC, Viewport.width, Viewport.height, NULL );
 ...