Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
#include "l_bitmap.h"
L_LTDLG_API L_INT L_DlgPNGWebTuner(hWndOwner, pDlgParams)
L_HWND hWndOwner; |
/* owner of dialog */ |
LPPNGWEBTUNERDLGPARAMS pDlgParams; |
/* pointer to a structure */ |
Displays the PNG Web Tuner dialog box, and gets the tuning options used by L_ColorResBitmap, L_FillBitmap, L_SaveBitmap and L_SetBitmapRgnColorRGBRange.
Parameter |
Description |
hWndOwner |
Handle of the window, which owns the dialog. |
pDlgParams |
Pointer to a PNGWEBTUNERDLGPARAMS 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. |
Comments
Returns
SUCCESS_DLG_OK |
The "OK" button was pressed, and the dialog exited successfully. |
SUCCESS_DLG_CLOSE |
The "Close" 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
LTDLGWEB 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_SaveBitmap, L_DlgGIFWebTuner, L_DlgJPEGWebTuner |
Topics: |
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Example
#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName // Example 1: L_INT DlgPNGWebTunerFirstExample(HWND hWnd,pBITMAPHANDLE pBitmap) { L_INT nRet; PNGWEBTUNERDLGPARAMS DlgParams ; memset ( &DlgParams, 0, sizeof ( PNGWEBTUNERDLGPARAMS ) ) ; DlgParams.uStructSize = sizeof ( PNGWEBTUNERDLGPARAMS ) ; DlgParams.pBitmap = pBitmap ; DlgParams.uDlgFlags = DLG_PNGWEBTUNER_SHOW_EXPORT | DLG_PNGWEBTUNER_SHOW_INFORMATION | DLG_PNGWEBTUNER_SHOW_PREVIEW | DLG_PNGWEBTUNER_SHOW_TOOL_ZOOMLEVEL | DLG_PNGWEBTUNER_SHOW_TOOL_COLORPICKER | DLG_PNGWEBTUNER_SHOW_TRANSPARENCY | DLG_PNGWEBTUNER_SHOW_ADDWINDOWCOLOR ; nRet = L_DlgInit ( DLG_INIT_COLOR ) ; if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED) return nRet; nRet = L_DlgPNGWebTuner ( hWnd, &DlgParams ) ; if(nRet < 1) return nRet; nRet = L_DlgFree ( ) ; if(nRet != SUCCESS) return nRet; return SUCCESS; } ; // Example 2: static COLORREF AddTolerance(COLORREF crColor, L_INT nTolerance) { L_INT nRed ; L_INT nGreen ; L_INT nBlue ; nRed = max ( min ( ( L_INT ) GetRValue ( crColor ) + nTolerance, 255 ), 0 ) ; nGreen = max ( min ( ( L_INT ) GetGValue ( crColor ) + nTolerance, 255 ), 0 ) ; nBlue = max ( min ( ( L_INT ) GetBValue ( crColor ) + nTolerance, 255 ), 0 ) ; return RGB ( nRed, nGreen, nBlue ) ; } static L_VOID ExportBitmap(L_TCHAR* szFileName, pBITMAPHANDLE pBitmap, LPPNGWEBTUNERDLGPARAMS pParam) { {// TRANSPERANCY if ( pParam->bTransparent ) { COLORREF crTransparentStart ; COLORREF crTransparentEnd ; crTransparentStart = AddTolerance ( pParam->crTransparent, - pParam->nTransparencyTolerance ) ; crTransparentEnd = AddTolerance ( pParam->crTransparent, pParam->nTransparencyTolerance ) ; // reset L_FreeBitmapRgn ( pBitmap ) ; // set attributes pBitmap->Flags.Transparency = TRUE ; pBitmap->Transparency = pParam->crTransparent ; // replace colors if ( pParam->nTransparencyTolerance >= 0 ) { L_SetBitmapRgnColorRGBRange ( pBitmap, crTransparentStart, crTransparentEnd, L_RGN_SET ) ; if ( L_BitmapHasRgn ( pBitmap ) ) { L_FillBitmap ( pBitmap, pParam->crTransparent ) ; } L_FreeBitmapRgn ( pBitmap ) ; } } }// TRANSPERANCY {// COLOR RESOLUTION L_UINT32 uFlags ; if ( pParam->nBitsPerPixel < 24 ) { uFlags = ( ( pParam->bAddWindowsColors ) && ( CRF_OPTIMIZEDPALETTE == pParam->nPalType ) ) ? CRF_IDENTITYPALETTE : 0 ; uFlags |= pParam->nDitherType ; uFlags |= pParam->nPalType ; L_ColorResBitmap ( pBitmap, pBitmap, sizeof(BITMAPHANDLE), pParam->nBitsPerPixel, uFlags, NULL, NULL, pParam->nNumOfColors, NULL, NULL ) ; } }// COLOR RESOLUTION {// SAVE TO DISK L_SaveBitmap ( szFileName, pBitmap, FILE_PNG, pParam->nBitsPerPixel, 0, NULL ) ; }// SAVE TO DISK } L_INT DlgPNGWebTunerSecondExample(HWND hWnd,pBITMAPHANDLE pBitmap) { L_INT nRet ; PNGWEBTUNERDLGPARAMS DlgParams ; memset ( &DlgParams, 0, sizeof ( PNGWEBTUNERDLGPARAMS ) ) ; DlgParams.uStructSize = sizeof ( PNGWEBTUNERDLGPARAMS ) ; DlgParams.pBitmap = pBitmap ; DlgParams.uDlgFlags = DLG_PNGWEBTUNER_SHOW_INFORMATION | DLG_PNGWEBTUNER_SHOW_PREVIEW | DLG_PNGWEBTUNER_SHOW_TOOL_ZOOMLEVEL | DLG_PNGWEBTUNER_SHOW_TOOL_COLORPICKER | DLG_PNGWEBTUNER_SHOW_TRANSPARENCY | DLG_PNGWEBTUNER_SHOW_ADDWINDOWCOLOR ; nRet = L_DlgInit ( DLG_INIT_COLOR ) ; if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED) return nRet; nRet = L_DlgPNGWebTuner ( hWnd, &DlgParams ) ; L_DlgFree () ; if ( SUCCESS_DLG_OK == nRet ) { ExportBitmap (MAKE_IMAGE_PATH(TEXT("tuned.gif")), pBitmap, &DlgParams ) ; } else if( nRet < 1 ) return nRet; return SUCCESS; }