Very simple, indeed: only 4 dll calls are needed. It also works with Python 3.1.1. The following example (borrowed from the PyWin32 demos) shows how to use graphics from Python, assuming PyWin32 is also installed:
py =
( %
import win32gui, win32con, win32api
import time, math, random, sys
def OnPaint_1(hwnd, msg, wp, lp):
dc, ps=win32gui.BeginPaint(hwnd)
win32gui.SetGraphicsMode(dc, win32con.GM_ADVANCED)
br=win32gui.CreateSolidBrush(win32api.RGB(255,0,0))
win32gui.SelectObject(dc, br)
angle=win32gui.GetWindowLong(hwnd, win32con.GWL_USERDATA)
win32gui.SetWindowLong(hwnd, win32con.GWL_USERDATA, angle+2)
r_angle=angle*(math.pi/180)
win32gui.SetWorldTransform(dc,
{'M11':math.cos(r_angle), 'M12':math.sin(r_angle), 'M21':math.sin(r_angle)*-1, 'M22':math.cos(r_angle),'Dx':250,'Dy':250})
win32gui.MoveToEx(dc,250,250)
win32gui.BeginPath(dc)
win32gui.Pie(dc, 10, 70, 200, 200, 350, 350, 75, 10)
win32gui.Chord(dc, 200, 200, 850, 0, 350, 350, 75, 10)
win32gui.LineTo(dc, 300,300)
win32gui.LineTo(dc, 100, 20)
win32gui.LineTo(dc, 20, 100)
win32gui.LineTo(dc, 400, 0)
win32gui.LineTo(dc, 0, 400)
win32gui.EndPath(dc)
win32gui.StrokeAndFillPath(dc)
win32gui.EndPaint(hwnd, ps)
return 0
wndproc_1={win32con.WM_PAINT:OnPaint_1}
def OnPaint_2(hwnd, msg, wp, lp):
dc, ps=win32gui.BeginPaint(hwnd)
win32gui.SetGraphicsMode(dc, win32con.GM_ADVANCED)
l,t,r,b=win32gui.GetClientRect(hwnd)
for x in range(25):
vertices=(
{'x':int(random.random()*r), 'y':int(random.random()*b), 'Red':int(random.random()*0xff00), 'Green':0, 'Blue':0, 'Alpha':0},
{'x':int(random.random()*r), 'y':int(random.random()*b), 'Red':0, 'Green':int(random.random()*0xff00), 'Blue':0, 'Alpha':0},
{'x':int(random.random()*r), 'y':int(random.random()*b), 'Red':0, 'Green':0, 'Blue':int(random.random()*0xff00), 'Alpha':0},
`)
mesh=((0,1,2),)
win32gui.GradientFill(dc,vertices, mesh, win32con.GRADIENT_FILL_TRIANGLE)
win32gui.EndPaint(hwnd, ps)
return 0
wndproc_2={win32con.WM_PAINT:OnPaint_2}
def TestSetWorldTransform():
wc = win32gui.WNDCLASS()
wc.lpszClassName = 'test_win32gui_1'
wc.style = win32con.CS_GLOBALCLASS|win32con.CS_VREDRAW | win32con.CS_HREDRAW
wc.hbrBackground = win32con.COLOR_WINDOW+1
wc.lpfnWndProc=wndproc_1
class_atom=win32gui.RegisterClass(wc)
hwnd = win32gui.CreateWindow(wc.lpszClassName,
'Spin the Lobster!',
win32con.WS_CAPTION|win32con.WS_VISIBLE,
100,100,900,900, 0, 0, 0, None)
for x in range(500):
win32gui.InvalidateRect(hwnd,None,True)
win32gui.PumpWaitingMessages()
time.sleep(0.01)
win32gui.DestroyWindow(hwnd)
win32gui.UnregisterClass(wc.lpszClassName, None)
def TestGradientFill():
wc = win32gui.WNDCLASS()
wc.lpszClassName = 'test_win32gui_2'
wc.style = win32con.CS_GLOBALCLASS|win32con.CS_VREDRAW | win32con.CS_HREDRAW
wc.hbrBackground = win32con.COLOR_WINDOW+1
wc.lpfnWndProc=wndproc_2
class_atom=win32gui.RegisterClass(wc)
hwnd = win32gui.CreateWindowEx(0, class_atom,'Kaleidoscope',
win32con.WS_CAPTION|win32con.WS_VISIBLE|win32con.WS_THICKFRAME|win32con.WS_SYSMENU,
100,100,900,900, 0, 0, 0, None)
s=win32gui.GetWindowLong(hwnd,win32con.GWL_EXSTYLE)
win32gui.SetWindowLong(hwnd, win32con.GWL_EXSTYLE, s|win32con.WS_EX_LAYERED)
win32gui.SetLayeredWindowAttributes(hwnd, 0, 175, win32con.LWA_ALPHA)
for x in range(30):
win32gui.InvalidateRect(hwnd,None,True)
win32gui.PumpWaitingMessages()
time.sleep(0.3)
win32gui.DestroyWindow(hwnd)
win32gui.UnregisterClass(class_atom,None)
TestSetWorldTransform()
TestGradientFill()
sys.exit(0)
)
DllCall("LoadLibrary", "str", A_WinDir "\SYSTEM32\python31.dll")
DllCall(A_WinDir "\SYSTEM32\python31.dll\Py_Initialize", "Cdecl")
DllCall(A_WinDir "\SYSTEM32\python31.dll\PyRun_SimpleString", "str",py, "Cdecl") ; exit script from Python
DllCall(A_WinDir "\SYSTEM32\python31.dll\Py_Finalize", "Cdecl")