HRESULT OutputText(char *pString, int x, int y, D3DCOLOR FontColor, ...) ;
OutputText("Framerate : %d", 0, 0, D3DCOLOR_XRGB(255, 255, 255), nFrameRate) ;
why can't I use "%d"
Author
I already searched the forum for my problem and found the following solution for it : I need to pass an int into a function that takes a *char as parameter
so I did this :
now I get this on my screen :
Framerate : %d
What did I do wrong, do I have to include a header file too if I want to use this?!?
thanx in advance for any help
[edited by - da_cobra on August 11, 2002 8:29:24 AM]
The input/output specifiers "&whatever" are part of
stdio.h and can only be used with scanf,printf,fscanf,fprintf etc.
[edited by - nonnus29 on August 11, 2002 8:37:07 AM]
stdio.h and can only be used with scanf,printf,fscanf,fprintf etc.
[edited by - nonnus29 on August 11, 2002 8:37:07 AM]
"Use sprintf() to format the message before you call OutputText() "
Then why does the OutputText function have "..." as its last argument? It must be some other sort of functionality? (aside from printf style formatting). I''m curious as to what functionality that is exactly...
Then why does the OutputText function have "..." as its last argument? It must be some other sort of functionality? (aside from printf style formatting). I''m curious as to what functionality that is exactly...
Author
ok ok I got it to work, but what I don''t understand is why it shows :
Framerate : 0
when I go in debugging mode it should display around 60
this is mu OutputText() function
Framerate : 0
when I go in debugging mode it should display around 60
this is mu OutputText() function
HRESULT OutputText(char *pString, int x, int y, D3DCOLOR FontColor, ...){ char buffer[256] ; va_list list ; va_start(list, pString) ; int ret = _vsnprintf(buffer, 256, pString, list) ; if( ret == 256 ) buffer[255] = ''\0'' ; va_end(list) ; RECT FontRect = { x, y, 0, 0 } ; HFONT hFont ; HRESULT hr ; hFont = (HFONT)GetStockObject(SYSTEM_FONT) ; if(pFont) { pFont->Release() ; pFont = NULL ; } if FAILED(D3DXCreateFont(g_lpDevice,hFont, &pFont)) { Write2Log("Failed to Initialize font") ; return E_FAIL ; } // end of if pFont->Begin() ; pFont->DrawTextA(buffer, -1, &FontRect, DT_CALCRECT, 0) ; hr = pFont->DrawTextA(buffer, -1, &FontRect, nAlign, FontColor) ; pFont->End() ; return hr ;} // end of OutputText()
... means "any type and number of arguments"
It says "you can pass whatever you want to this function"
It says "you can pass whatever you want to this function"
quote:Original post by niyaw
make pString the last parameter to your function.
... not the last I should say, but before the ''...''
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