Font size on components in a dialog box.

Comments

• pingpong

  February 2003

  via code, you need to send the hFont to the control windows via WM_SETFONT. Check it out in MSDN.
  
  If you want all text boxes to be of a certain font, all labels of another, etc, then you might write some code like this:
  
  [code]
  INT WINAPI DialogProc(HWND hDlg, ...
  {
  switch(message)
  {
  case WM_INITDIALOG:
  {
  // enumerate all children
  HWND hControl = GetWindow(hDlg, GW_CHILD);
  while(hControl != null)
  {
  // get the class name
  TCHAR className[800];
  GetClassName(hControl, className, sizeof(className));
  
  // set the font based on class
  if(lstrcmpi(className, "edit") == 0)
  SendMessage(hControl, WM_SETFONT, hEditBoxFont, 0);
  else if(lstrcmpi(className, "static") == 0)
  SendMessage(hControl, WM_SETFONT, hStaticFont, 0);
  
  // get next control
  hControl = GetWindow(hControl, GWL_HWNDNEXT);
  }
  [/code]
  
  
  
  : I would like to change the font size on the text in edit boxes or/and static text boxes. The only change i have been able to make is through properties of the dialog box where i set the font for all of the items of the dialog box, although i cannot set bold for example, but i would like to set the fonts for the text boxes differently than the whole dialog box. I see no such similar capability in the properties of the text box. Is there a way to do this, either via program code or through the properties of the text box ? Thanks.
  :
  
  
• jtcoelho

  February 2003

  Thanks for the information. But if i just want to create a font for a specific control such as a static text box, and no other, how do i get the handle for the font ? Do i first get a device handle GetDC then a handle to the font? I have looked at some of the sample code in Petzold and it seems rather intricate - and since i would like to apply that to one single control - i would like an easier way of setting the font for that control. Any examples ?
  : via code, you need to send the hFont to the control windows via WM_SETFONT. Check it out in MSDN.
  :
  : If you want all text boxes to be of a certain font, all labels of another, etc, then you might write some code like this:
  :
  : [code]
  : INT WINAPI DialogProc(HWND hDlg, ...
  : {
  : switch(message)
  : {
  : case WM_INITDIALOG:
  : {
  : // enumerate all children
  : HWND hControl = GetWindow(hDlg, GW_CHILD);
  : while(hControl != null)
  : {
  : // get the class name
  : TCHAR className[800];
  : GetClassName(hControl, className, sizeof(className));
  :
  : // set the font based on class
  : if(lstrcmpi(className, "edit") == 0)
  : SendMessage(hControl, WM_SETFONT, hEditBoxFont, 0);
  : else if(lstrcmpi(className, "static") == 0)
  : SendMessage(hControl, WM_SETFONT, hStaticFont, 0);
  :
  : // get next control
  : hControl = GetWindow(hControl, GWL_HWNDNEXT);
  : }
  : [/code]
  :
  :
  :
  : : I would like to change the font size on the text in edit boxes or/and static text boxes. The only change i have been able to make is through properties of the dialog box where i set the font for all of the items of the dialog box, although i cannot set bold for example, but i would like to set the fonts for the text boxes differently than the whole dialog box. I see no such similar capability in the properties of the text box. Is there a way to do this, either via program code or through the properties of the text box ? Thanks.
  : :
  :
  :
  
  
• AsmGuru62

  February 2003

  [code]
  LOGFONT lf={0};
  HFONT hFont;
  HDC hScreenDC = GetDC (NULL);
  int iPixelsPerInch = GetDeviceCaps (hScreenDC, LOGPIXELSY);
  int iPointSize=9; // Font will be -> Tahoma,9
  
  strcpy (lf.lfFaceName, "Tahoma");
  lf.lfWeight = FW_NORMAL;
  lf.lfHeight = -MulDiv (iPointSize, iPixelsPerInch, 72);
  ReleaseDC (NULL, hScreenDC);
  hFont = CreateFontIndirect (&lf); // <- here is your font handle.
  [/code]
  
• jtcoelho

  February 2003

  Thanks much.
  : [code]
  : LOGFONT lf={0};
  : HFONT hFont;
  : HDC hScreenDC = GetDC (NULL);
  : int iPixelsPerInch = GetDeviceCaps (hScreenDC, LOGPIXELSY);
  : int iPointSize=9; // Font will be -> Tahoma,9
  :
  : strcpy (lf.lfFaceName, "Tahoma");
  : lf.lfWeight = FW_NORMAL;
  : lf.lfHeight = -MulDiv (iPointSize, iPixelsPerInch, 72);
  : ReleaseDC (NULL, hScreenDC);
  : hFont = CreateFontIndirect (&lf); // <- here is your font handle.
  : [/code]
  :
  
  
• jtcoelho

  February 2003

  Thanks again, i used the code and works beautifully. I do have a question, why do you use the MulDiv function to get the Height. Thanks again.
  : [code]
  : LOGFONT lf={0};
  : HFONT hFont;
  : HDC hScreenDC = GetDC (NULL);
  : int iPixelsPerInch = GetDeviceCaps (hScreenDC, LOGPIXELSY);
  : int iPointSize=9; // Font will be -> Tahoma,9
  :
  : strcpy (lf.lfFaceName, "Tahoma");
  : lf.lfWeight = FW_NORMAL;
  : lf.lfHeight = -MulDiv (iPointSize, iPixelsPerInch, 72);
  : ReleaseDC (NULL, hScreenDC);
  : hFont = CreateFontIndirect (&lf); // <- here is your font handle.
  : [/code]
  :
  
  
• AsmGuru62

  February 2003

  : Thanks again, i used the code and works beautifully. I do have a question, why do you use the MulDiv function to get the Height. Thanks again.
  : : [code]
  : : LOGFONT lf={0};
  : : HFONT hFont;
  : : HDC hScreenDC = GetDC (NULL);
  : : int iPixelsPerInch = GetDeviceCaps (hScreenDC, LOGPIXELSY);
  : : int iPointSize=9; // Font will be -> Tahoma,9
  : :
  : : strcpy (lf.lfFaceName, "Tahoma");
  : : lf.lfWeight = FW_NORMAL;
  : : lf.lfHeight = -MulDiv (iPointSize, iPixelsPerInch, 72);
  : : ReleaseDC (NULL, hScreenDC);
  : : hFont = CreateFontIndirect (&lf); // <- here is your font handle.
  : : [/code]
  : :
  :
  :
  [blue]It is done, because the point (Tahoma,9pt) is 1/72 of an inch and with this function we can find how many pixels it will be on our HDC - whatever it is - it can be printer DC...
  
  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/fontext_1wmq.asp[/blue]