如何在没有窗口的情况下直接将图像变亮到屏幕上? [英] How to blit a image directly to the screen without a window?
问题描述
如何显示来自PNG,BITMAP,JPEG文件等的图像.在没有窗口的屏幕上?我希望图像显示时最好不要在其周围有任何框架,而无需将其作为窗口注册在任务栏上.我想将这些图像快速连续地放到屏幕上.如果它与Windows XP和Windows 7兼容,我希望这样做.我愿意下载一个外部模块.如果可以的话,请告诉我.谢谢!
How do I show a image from a PNG, BITMAP, JPEG file, ect. on the screen without a window? I want the image to appear with no frame surrounding it preferably without it registering on the task bar as a window. I would like to put these images on the screen in rapid succession. I would like it if it was compatible with Windows XP and Windows 7. I am willing to download a external module. If this is possible, please tell me. Thanks!
推荐答案
这将创建一个透明背景的成形窗口,在同一文件夹中显示"image.png"
This will create a shaped window with transparent background displaying the "image.png" in same folder
import wx
# Create a .png image with something drawn on a white background
# and put the path to it here.
IMAGE_PATH = 'image.png'
class ShapedFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, -1, "Shaped Window",
style = wx.FRAME_SHAPED | wx.SIMPLE_BORDER)
self.hasShape = False
self.delta = wx.Point(0,0)
# Load the image
image = wx.Image(IMAGE_PATH, wx.BITMAP_TYPE_PNG)
image.SetMaskColour(255,255,255)
image.SetMask(True)
self.bmp = wx.BitmapFromImage(image)
self.SetClientSize((self.bmp.GetWidth(), self.bmp.GetHeight()))
dc = wx.ClientDC(self)
dc.DrawBitmap(self.bmp, 0,0, True)
self.SetWindowShape()
self.Bind(wx.EVT_LEFT_DCLICK, self.OnDoubleClick)
self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
self.Bind(wx.EVT_LEFT_UP, self.OnLeftUp)
self.Bind(wx.EVT_MOTION, self.OnMouseMove)
self.Bind(wx.EVT_RIGHT_UP, self.OnExit)
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.Bind(wx.EVT_WINDOW_CREATE, self.SetWindowShape)
self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground)
def OnEraseBackground(self,evt=None):
pass
def SetWindowShape(self, evt=None):
r = wx.RegionFromBitmap(self.bmp)
self.hasShape = self.SetShape(r)
def OnDoubleClick(self, evt):
if self.hasShape:
self.SetShape(wx.Region())
self.hasShape = False
else:
self.SetWindowShape()
def OnPaint(self, evt):
dc = wx.PaintDC(self)
dc.DrawBitmap(self.bmp, 0,0, True)
def OnExit(self, evt):
self.Close()
def OnLeftDown(self, evt):
self.CaptureMouse()
pos = self.ClientToScreen(evt.GetPosition())
origin = self.GetPosition()
self.delta = wx.Point(pos.x - origin.x, pos.y - origin.y)
def OnMouseMove(self, evt):
if evt.Dragging() and evt.LeftIsDown():
pos = self.ClientToScreen(evt.GetPosition())
newPos = (pos.x - self.delta.x, pos.y - self.delta.y)
self.Move(newPos)
def OnLeftUp(self, evt):
if self.HasCapture():
self.ReleaseMouse()
if __name__ == '__main__':
app = wx.PySimpleApp()
ShapedFrame().Show()
app.MainLoop()
这是我使用的图像
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