References ▼
#include "l_bitmap.h"
L_LTDLG_API L_INT L_DlgGrayScale (hWndOwner, pDlgParams)
L_HWND hWndOwner; |
owner of dialog |
LPGRAYSCALEDLGPARAMS pDlgParams; |
pointer to a structure |
Displays the Gray Scale dialog box, and gets the options for L_GrayScaleBitmapExt.
Parameter |
Description |
hWndOwner |
Handle of the window which owns the dialog. |
pDlgParams |
Pointer to a GRAYSCALEDLGPARAMS 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. |
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. |
Required DLLs and Libraries
LTDLGCLR For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application |
Functions: |
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L_INT ShowDlgGrayScaleExample(HWND hWnd,pBITMAPHANDLE pBitmap){L_INT nRet;GRAYSCALEDLGPARAMS DlgParams ;memset ( &DlgParams, 0, sizeof ( GRAYSCALEDLGPARAMS ) ) ;DlgParams.uStructSize = sizeof ( GRAYSCALEDLGPARAMS ) ;DlgParams.pBitmap = pBitmap ;DlgParams.nRedFactor = 400 ;DlgParams.nGreenFactor = 300 ;DlgParams.nBlueFactor = 300 ;DlgParams.uDlgFlags = DLG_GRAYSCALE_SHOW_PREVIEW |DLG_GRAYSCALE_SHOW_TOOL_ZOOMLEVEL ;nRet = L_DlgInit ( DLG_INIT_COLOR ) ;if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED)return nRet;nRet = L_DlgGrayScale ( hWnd, &DlgParams ) ;if(nRet < 1)return nRet;nRet = L_DlgFree () ;if(nRet != SUCCESS)return nRet;return SUCCESS;} ;