View Full Version : Height of the default system font

December 10th, 2002, 23:27
Ok, i know thats a little stupid question, but... can you tell me how can i get the height of the default system font in PIXELS, using the standard Win32 api funtionc?


December 11th, 2002, 01:56
The GetTextExtentPoint32 function computes the width and height of the specified string of text. This function supersedes the GetTextExtentPoint function.

BOOL GetTextExtentPoint32(

HDC hdc, // handle of device context
LPCTSTR lpString, // address of text string
int cbString, // number of characters in string
LPSIZE lpSize // address of structure for string size



Identifies the device context.


Points to the string of text. The string does not need to be zero-terminated, since cbString specifies the length of the string.


Specifies the number of characters in the string.


Points to a SIZE structure in which the dimensions of the string are to be returned.

Return Values

If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.


The GetTextExtentPoint32 function uses the currently selected font to compute the dimensions of the string. The width and height, in logical units, are computed without considering any clipping.
Because some devices kern characters, the sum of the extents of the characters in a string may not be equal to the extent of the string.
The calculated string width takes into account the intercharacter spacing set by the SetTextCharacterExtra function.

That will give you the width and height of the currently selected font given some text :)


December 11th, 2002, 08:37
Yes, I've tried that already but it always gives me 16. Anyway, thanx for the reply :).

December 11th, 2002, 23:24
Originally posted by linker
Yes, I've tried that already but it always gives me 16. Anyway, thanx for the reply :).
Then that is likely the height in pixels of whatever the currently used font is. You need to find the BASE window font. This unfortunately changes.. you need the default window font likely and use that. Which means you need to 'grab it' and set the current font to that.


January 5th, 2003, 22:44