L_DlgSetFont
#include "l_bitmap.h"
L_LTDLG_API L_HFONT L_DlgSetFont(hFont)
L_HFONT hFont; |
/* handle to the selected font */ |
Sets the font for the LEADTOOLS Common Dialogs.
Parameter |
Description |
hFont |
Handle to the selected font. |
Returns
!NULL |
The previous font. |
NULL |
An error occurred. |
Comments
The default font is your systems default font.
Call this function with hFont set to NULL to use the default system font.
The hFont parameter will not be copied. You must insure that the hFont remains valid until it is no longer needed.
Required DLLs and Libraries
LTDLGKRN 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: |
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Topics: |
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Example
#define LT_DLG_SOLARIZE_IDDLG 1001 #define LT_DLG_SOLARIZE_IDEDT_THRESHOLD 1002 L_VOID EXT_CALLBACK DlgHelpCB(L_UINT32 uFlag, L_INT nCtlID) { switch ( uFlag ) { case DLG_HELP_SOLARIZE: { switch (nCtlID ) { case LT_DLG_SOLARIZE_IDDLG: case LT_DLG_SOLARIZE_IDEDT_THRESHOLD: MessageBox (NULL, TEXT("Help with Solarize!"), TEXT("Help"), MB_OK); break; default: break; } break ; } } } L_INT DlgSetFontExample(HWND hWnd,pBITMAPHANDLE pBitmap) { L_INT nRet; HDC hDC; L_UINT uLen; HFONT hMyFont = NULL; L_TCHAR* pszString = NULL; L_TCHAR szNewCaption [] = TEXT("My New Solarize Caption"); hDC = GetDC (NULL); // set a custom font and string for the emboss dialog // NOTE, you should change the font name to a font on your system hMyFont = CreateFont ( - MulDiv (8, GetDeviceCaps(hDC, LOGPIXELSY), 72), 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH, TEXT("Bones")); nRet = L_DlgInit ( DLG_INIT_COLOR ); if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED) return nRet; L_DlgSetFont (hMyFont); // Get the default caption string nRet = L_DlgGetStringLen ( DLG_SOLARIZE_IDSTR_CAPTION, &uLen ) ; if(nRet != SUCCESS) return nRet; // sdd 1, for the terminating NULL pszString = ( L_TCHAR* ) GlobalAlloc ( GMEM_FIXED, ( uLen * sizeof ( L_TCHAR ) + 1 ) ) ; nRet = L_DlgGetString ( DLG_SOLARIZE_IDSTR_CAPTION, pszString , uLen * sizeof ( L_TCHAR ) + 1) ; if(nRet != SUCCESS) return nRet; // display default caption string MessageBox ( hWnd, pszString, TEXT("Default"), MB_OK ) ; GlobalFree ( pszString ) ; // change caption string nRet = L_DlgSetString ( DLG_SOLARIZE_IDSTR_CAPTION, szNewCaption ) ; if(nRet != SUCCESS) return nRet; // now, display the dialog to see our changes { SOLARIZEDLGPARAMS DlgParams ; memset ( &DlgParams, 0, sizeof ( SOLARIZEDLGPARAMS ) ) ; DlgParams.uStructSize = sizeof ( SOLARIZEDLGPARAMS ) ; DlgParams.pBitmap = pBitmap ; DlgParams.pfnHelpCallback = ( LTCOMMDLGHELPCB ) DlgHelpCB ; DlgParams.uDlgFlags = DLG_SOLARIZE_AUTOPROCESS | DLG_SOLARIZE_SHOW_CONTEXTHELP | DLG_SOLARIZE_SHOW_PREVIEW | DLG_SOLARIZE_SHOW_TOOL_ZOOMLEVEL; nRet = L_DlgSolarize ( hWnd, &DlgParams ) ; if(nRet < 1) return nRet; } L_DlgSetFont ( NULL ) ; L_DlgFree () ; DeleteObject ( hMyFont ) ; ReleaseDC ( NULL, hDC ) ; return SUCCESS; }