IG_dspl_layout

This function sets layout parameters.

Declaration:

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AT_ERRCOUNT ACCUAPI IG_dspl_layout_set( [IN] HIGEAR hIGear, [IN] DWORD dwGrpID, [IN] DWORD nFlags, [IN] const LPAT_RECTANGLE lpImageRect, [IN] const LPAT_RECTANGLE lpDeviceRect, [IN] const LPAT_RECTANGLE lpClipRect, [IN] AT_MODE nFitMode, [IN] AT_MODE nAlignMode, [IN] AT_MODE nAspectMode, [IN] DOUBLE dblAspectValue );

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AT_ERRCOUNT   ACCUAPI  IG_dspl_layout_set( 
        [IN] HIGEAR hIGear, 
        [IN] DWORD dwGrpID,
        [IN] DWORD nFlags,
        [IN] const LPAT_RECTANGLE lpImageRect,
        [IN] const LPAT_RECTANGLE lpDeviceRect,
        [IN] const LPAT_RECTANGLE lpClipRect,
        [IN] AT_MODE nFitMode,
        [IN] AT_MODE nAlignMode,
        [IN] AT_MODE nAspectMode,
        [IN] DOUBLE dblAspectValue
);

Arguments:

Name	Type	Description
hIGear	HIGEAR	ImageGear handle of image.
dwGrpID	DWORD	Identifier of group in which to set layout options.
nFlags	DWORD	Combination of flags where each one specifies if the appropriate parameter is to be used or ignored: IG_DSPL_IMAGE_RECT - if (nFlags&IG_DSPL_IMAGE_RECT)!=0 then the lpImageRect parameter of this function is not ignored IG_DSPL_DEVICE_RECT - if (nFlags&IG_DSPL_DEVICE_RECT)!=0 then the lpDeviceRect parameter of this function is not ignored IG_DSPL_CLIP_RECT - if (nFlags&IG_DSPL_CLIP_RECT)!=0 then the lpClipRect parameter of this function is not ignored IG_DSPL_FIT_MODE - if (nFlags&IG_DSPL_FIT_MODE)!=0 then the nFitMode parameter of this function is not ignored IG_DSPL_ALIGN_MODE - if (nFlags&IG_DSPL_ALIGN_MODE)!=0 then the nAlignMode parameter of this function is not ignored IG_DSPL_ASPECT_MODE - if (nFlags&IG_DSPL_ASPECT_MODE)!=0 then the nAspectMode parameter of this function is not ignored IG_DSPL_ASPECT_VALUE - if (nFlags&IG_DSPL_ASPECT_VALUE)!=0 then the dblAspectValue parameter of this function is not ignored
lpImageRect	const LPAT_RECTANGLE	A new value of ImageRect option to set. If NULL then it is reset with the default value which means the whole image will be used.
lpDeviceRect	const LPAT_RECTANGLE	A new value of DeviceRect option to set. If NULL, then it is reset with the default value (an empty rectangle). This means it is calculated every time from the destination output device.
lpClipRect	const LPAT_RECTANGLE	A new value of ClipRect option to set. If NULL, then it is reset with the default value (an empty rectangle). This means it is calculated every time and assigned to the whole client area of the destination output device.
nFitMode	AT_MODE	New value of FitMode option to set. Possible values are: IG_DSPL_FIT_TO_DEVICE IG_DSPL_FIT_TO_WIDTH IG_DSPL_FIT_TO_HEIGHT IG_DSPL_ACTUAL_SIZE
nAlignMode	AT_MODE	New value of AlignMode option to set. Possible value is OR combination of one constant that sets the horizontal alignment: IG_DSPL_ALIGN_X_LEFT IG_DSPL_ALIGN_X_CENTER IG_DSPL_ALIGN_X_RIGHT and one that sets the vertical alignment: IG_DSPL_ALIGN_Y_TOP IG_DSPL_ALIGN_Y_CENTER IG_DSPL_ALIGN_Y_BOTTOM
nAspectMode	AT_MODE	New value of AspectMode option to set. Possible values are: IG_DSPL_ASPECT_FIXED IG_DSPL_ASPECT_NOT_FIXED
dblAspectValue	DOUBLE	Sets new value to AspectValue option. Possible value may be any positive double.

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++.

Example:

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HIGEAR hIGear; /* HIGEAR handle of image / DWORD nGrpID; / display group identifier / AT_RECTANGLE ImageRect; / Image rectangle / AT_RECTANGLE DeviceRect; / Device rectangle / AT_RECTANGLE ClipRect; / Clip rectangle / AT_MODE nFitMode; / Fit mode / AT_MODE nAlignMode; / Align mode / AT_MODE nAspectMode; / Aspect mode / DOUBLE dAspectValue; / Aspect value / AT_MODE nFlags; / flags which specify what to set / / set all layout parameters / nFlags = IG_DSPL_IMAGE_RECT\|IG_DSPL_DEVICE_RECT\|IG_DSPL_CLIP_RECT\|IG_DSPL_FIT_MODE\|IG_DSPL_ALIGN_M ODE\|IG_DSPL_ASPECT_MODE\|IG_DSPL_ASPECT_VALUE; IG_dspl_layout_get( hIGear, nGrpID, &ImageRect, &DeviceRect, &ClipRect, nFitMode, nAlignMode, nAspectMode, dAspectValue ); ... ... / reset image, device and clip rectangles to its default values / nFlags = IG_DSPL_IMAGE_RECT\|IG_DSPL_DEVICE_RECT\|IG_DSPL_CLIP_RECT; IG_dspl_layout_set( hIGear, nGrpID, nFlags, NULL, NULL, NULL, 0, 0, 0, 0.0 ); ... / set new fit mode / IG_dspl_layout_set( hIGear, nGrpID, IG_DSPL_FIT_MODE, NULL, NULL, NULL, IG_DSPL_FIT_TO_WIDTH, 0, 0, 0.0 ); ... / set align mode so that the image located at right bottom of device rectangle */ IG_dspl_layout_set( hIGear, nGrpID, IG_DSPL_ALIGN_MODE, NULL, NULL, NULL, 0, IG_DSPL_ALIGN_X_RIGHT\| IG_DSPL_ALIGN_Y_BOTTOM, 0, 0.0 ); ...

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HIGEAR           hIGear;    /* HIGEAR handle of image  */
DWORD           nGrpID;     /* display group identifier */
AT_RECTANGLE             ImageRect;  /* Image rectangle   */
AT_RECTANGLE             DeviceRect;  /* Device rectangle   */
AT_RECTANGLE             ClipRect;     /* Clip rectangle  */
AT_MODE          nFitMode;     /* Fit mode     */
AT_MODE          nAlignMode;    /* Align mode     */
AT_MODE          nAspectMode;   /* Aspect mode     */
DOUBLE          dAspectValue;      /* Aspect value  */
AT_MODE          nFlags;        /* flags which specify what to set */
/* set all layout parameters */
nFlags =
IG_DSPL_IMAGE_RECT|IG_DSPL_DEVICE_RECT|IG_DSPL_CLIP_RECT|IG_DSPL_FIT_MODE|IG_DSPL_ALIGN_M
ODE|IG_DSPL_ASPECT_MODE|IG_DSPL_ASPECT_VALUE;
IG_dspl_layout_get( hIGear, nGrpID, &ImageRect, &DeviceRect, &ClipRect, nFitMode,
nAlignMode, nAspectMode, dAspectValue );
 ... ...
/* reset image, device and clip rectangles to its default values */
nFlags = IG_DSPL_IMAGE_RECT|IG_DSPL_DEVICE_RECT|IG_DSPL_CLIP_RECT;
IG_dspl_layout_set( hIGear, nGrpID, nFlags, NULL, NULL, NULL, 0, 0, 0, 0.0 );
 ...
/* set new fit mode */
IG_dspl_layout_set( hIGear, nGrpID, IG_DSPL_FIT_MODE, NULL, NULL, NULL,
IG_DSPL_FIT_TO_WIDTH, 0, 0, 0.0 );
 ...
/* set align mode so that the image located at right bottom of device rectangle */
IG_dspl_layout_set( hIGear, nGrpID, IG_DSPL_ALIGN_MODE, NULL, NULL, NULL, 0,
IG_DSPL_ALIGN_X_RIGHT| IG_DSPL_ALIGN_Y_BOTTOM, 0, 0.0 );
 ...

Remarks:

If some of the values are out of range, then it does not change, and an error is returned.