References ▼
#include "l_bitmap.h"
L_LTDLG_API L_INT L_DlgContrast(hWndOwner, pDlgParams)
Displays the Contrast dialog box, and gets the options for L_ChangeBitmapContras.
Handle of the window which owns the dialog.
Pointer to a CONTRASTDLGPARAMS 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.
| Value | Meaning |
|---|---|
| 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. |
The Contrast dialog.
Required DLLs and Libraries
L_INT ShowDlgContrastExample(HWND hWnd,pBITMAPHANDLE pBitmap){L_INT nRet;CONTRASTDLGPARAMS DlgParams ;memset ( &DlgParams, 0, sizeof ( CONTRASTDLGPARAMS ) ) ;DlgParams.uStructSize = sizeof ( CONTRASTDLGPARAMS ) ;DlgParams.pBitmap = pBitmap ;DlgParams.uDlgFlags = DLG_CONTRAST_SHOW_PREVIEW |DLG_CONTRAST_SHOW_TOOL_ZOOMLEVEL;nRet = L_DlgInit ( DLG_INIT_COLOR ) ;if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED)return nRet;nRet = L_DlgContrast( hWnd, &DlgParams ) ;if(nRet < 1)return nRet;nRet = L_DlgFree();if(nRet != SUCCESS)return nRet;return SUCCESS;};