Printing on Windows form in C

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Hi,

I am trying to print a list of things on the windows form but I am not able to do it. I am using textout to print currently but it only prints one line every time.

This is what I have done under WM_PAINT

C++

case WM_PAINT:
{
   // Draw on Window

   hdc = BeginPaint(hMainWindow, &amp;pStruct);
   GetClientRect(hMainWindow, &amp;clientArea);

   // Output position
   TextOut(
       hdc,          // handle to DC
       nXStart,      // x-coordinate of starting position
       nYStart,      // y-coordinate of starting position
       textBuff,       // character string
       MAX_BUFF_LEN  // number of characters
    );
}

Basically I want a list of things to be printed on a new line.I am not able to do that.Everything I add to the textBuff gets printed in one horizontal line.

Posted 28-Apr-11 22:27pm

blink0

Updated 28-Apr-11 22:33pm

Olivier Levrey

v3

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Olivier Levrey 29-Apr-11 4:34am

Edited tags for code formating.

1 solution

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Olivier Levrey · Accepted Answer · 2011-04-28T22:30:00

Solution 1

Use DrawText instead of TextOut.

And group all your lines in one unique string and add a new line character at the end of each line: "\n". Or "\r\n" for carriage return + new line.

Posted 28-Apr-11 22:30pm

Olivier Levrey

Updated 28-Apr-11 22:36pm

v3

Comments

blink0 29-Apr-11 4:39am

Thanks, but I have tried that already.

swprintf(textBuff2, 300, L"Process %d \r\n", i+1);
wcscat(textBuff, textBuff2);
Here swprintf gets the new string i.e. Process 1 and then add it to textbuff and the loops runs again.
so process 1 process 2 process 3 gets amended to textBuff and that's the character array I am printing but it prints in a single line still.

I will try with DrawText and post my experience.

blink0 29-Apr-11 4:48am

Thanks a lot it worked. :)
For anyone wondering I just replaced the Textout definition with the following:
DrawText(hdc, textBuff, -1, &clientArea, DT_CENTER | DT_VCENTER);//where DT_CENTER | DT_VCENTER is just preference

Olivier Levrey 29-Apr-11 4:52am

Good :)
I saw your first tried with DT_SINGLELINE. Without it, it works better of course ;)

blink0 29-Apr-11 4:53am

I copy pasted that from an example of DrawText but then I noticed and I was like Oh Boy lol. Thanks :)

Olivier Levrey 29-Apr-11 4:54am

You are welcome.