Drawing a line

How do I do this? I can draw a rectangle but not a line x.x Also how would I go about drawing half of a circle.

EDIT:

Also, how would I make my embedded bitmap rotate x.x

Are you using the GDI?

Link

Link2

Ok, now using the POINT structure, how would I specify current position?

If you know a good set of tutorials on doing this stuff , please direct me=P im programming in pure win32 api. Meaning no MFC etc.

Set your starting point:-
MoveToEx(hdc, x, y, NULL);

GO!
LineTo(hdc, x2, y2);

ok thanks =P, now how do I make my embedded bitmap rotate? would I have to mix opengl and bind textures and crap?

I have want to have it draw when I click a button, I will show what I've done:

Code:

                 switch(GET_WM_COMMAND_ID(wParam,lParam))
                 {
                     case BUTTON123:
                          {
                               HDC hdc;
                               PAINTSTRUCT ps;
                               HPEN hPen;
                               
                               hdc = BeginPaint(Phys,&ps);
                               hPen = CreatePen(PS_DASHDOTDOT,1,RGB(0,0,0));
                               
                               LineTo(hdc,200,200);
                               
                               EndPaint(Phys,&ps);
                          }
                     break;
                 }

This is in a child window >.<

It doesn't do anything when the button is clicked... I tried sending a wm_paint message and having it paint that when the message is handled. and in that having a variable that gets cordinates, but nothing works

Try not to call BeginPaint/EndPaint outside of a WM_PAINT response, you'll achieve nothing.

Replace them with
hdc = GetDC(hwnd);
ReleaseDC(hwnd, hdc);

hwnd being the variable you're using for your window handle.

Also, creating a pen is all well and good, but you'll need to select it into the dc to use it. So, after your CreatePen bit:-
hOld = SelectObject(hdc, hPen);

Make hOld another HPEN.
Then, after your line drawing and before ReleaseDC:-
SelectObject(hdc, hOld);
DeleteObject(hPen);

This stops you from potentially running out of GDI handles (it stops working, as does most of Windows).