Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
#include "l_bitmap.h"
L_LTDLG_API L_INT L_DlgGradientFilter (hWndOwner, pDlgParams )
L_HWND hWndOwner; |
/* owner of dialog */ |
LPGRADIENTFILTERDLGPARAMS pDlgParams; |
/* pointer to a structure */ |
Displays the Gradient Filter dialog box, and gets the options for L_SpatialFilterBitmap.
Parameter |
Description |
hWndOwner |
Handle of the window which owns the dialog. |
pDlgParams |
Pointer to a GRADIENTFILTERDLGPARAMS structure to be updated with the values entered by the user, through the dialog. Set members of this structure, before calling this function, to set the dialogs initial values. |
Returns
SUCCESS_DLG_OK |
The "OK" button was pressed, and the dialog exited successfully. |
SUCCESS_DLG_CANCEL |
The "Cancel" button was pressed, and the dialog exited successfully. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
Required DLLs and Libraries
LTDLGIMGEFX For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application |
See Also
Functions: |
L_DlgInit, L_SpatialFilterBitmap, L_DlgLaplacianFilter, L_DlgSobelFilter, L_DlgPrewittFilter, L_DlgLineSegmentFilter |
Topics: |
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Example
L_INT DLGGradientFilterExample(HWND hWnd,pBITMAPHANDLE pBitmap) { L_INT nRet; GRADIENTFILTERDLGPARAMS DlgParams ; memset ( &DlgParams, 0, sizeof ( GRADIENTFILTERDLGPARAMS ) ) ; DlgParams.uStructSize = sizeof ( GRADIENTFILTERDLGPARAMS ) ; DlgParams.pBitmap = pBitmap ; DlgParams.pFilter = FLT_GRADIENT_NE ; DlgParams.uDlgFlags = DLG_GRADIENTFILTER_SHOW_PREVIEW | DLG_GRADIENTFILTER_SHOW_TOOL_ZOOMLEVEL; nRet = L_DlgInit ( DLG_INIT_COLOR ) ; if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED) return nRet; nRet = L_DlgGradientFilter ( hWnd, &DlgParams ) ; if(nRet < 1) return nRet; nRet = L_DlgFree () ; if(nRet != SUCCESS) return nRet; return SUCCESS; }