CStatic自定义控件
我正在尝试在 vc++ 中创建自定义 CStatic 控件，但遇到了一些问题。
我最初只是使用具有 SS_BLACKRECT 样式的 CStatic 控件。 这对这种情况很有好处，直到我需要根据需要在控件上显示图像。
我弄清楚了将图像实际绘制到控件上背后的所有逻辑，但我似乎无法弄清楚如何在不干扰其他事情的情况下做到这一点。
基本上，我希望该控件在大多数情况下都可以用作具有 SS_BLACKRECT 样式的普通 CStatic 功能。
然后我需要能够调用一个方法，使其在控件上绘制图像。 我正在使用 GDI 进行绘图，并在 OnPaint() 方法和 DrawItem() 方法中尝试过，但没有成功。 我可以让它在 OnPaint() 中绘制，但是当我调用基础 CStatic::OnPaint() 时，它会在我的图像上绘制。
我需要能够让它像平常一样绘制，但然后只需在上面放置一个图像即可。 当我尝试在 DrawItem() 方法中执行此操作时，我遇到了问题，因为显然它不是使用 SS_BLACKRECT 样式进行绘制，而是等待我像它一样绘制控件应该。
我想我正在寻找的是三件事之一。 一种在基本 OnPaint() 方法完成后使用 GDI 进行绘制的方法。 一种让控件绘制默认的 SS_BLACKRECT 样式，然后绘制 OWNERDRAW 图像的方法。 或者模仿 SS_BLACKRECT 绘图的代码。
最后一个可能是最简单的，但我只是不知道绘制像默认 DrawItem 这样的 CStatic 控件所需的所有设置。
I am trying to create a custom CStatic control in vc++ and have a few problems.
I originally was just using a CStatic control with the SS_BLACKRECT style. This was good for the situation until I needed to display an image over the control on demand.
I figured out all the logistics behind actually drawing the image onto the control but I cant seem to figure out how to do so without interfering with other things.
Basically I want the control to function as a normal CStatic with the SS_BLACKRECT style most of the time.
Then I need to be able to call a method that will cause it to draw an image over the control instead. I am doing the drawing using GDI and have tried it both in the OnPaint() method and the DrawItem() method without success. I can get it to draw in the OnPaint() but when I call the base CStatic::OnPaint() it draws over my image.
I need to be able to allow it to draw like normal but then just throw an image in on top. When I tried to do it in the DrawItem() method I had a problem because obviously it was not drawing using the SS_BLACKRECT style but waiting for me to draw the control like its supposed to.
I guess what I think I'm looking for is one of three things. A way to draw using GDI after the base OnPaint() method finishes. A way to have the control draw the default SS_BLACKRECT style and then OWNERDRAW the image afterwards. Or the code to mimic the drawing of SS_BLACKRECT.
The last one might be the easiest but I just don't know all the things I need to set up to draw a CStatic control like the default DrawItem.
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尝试在
OnPaint()处理程序中调用Default()。然后，根据您是否要绘制图像，您可以在标准
CStatic控件的顶部进行绘制。Try calling
Default()in yourOnPaint()handler.Then, depending on whether you're drawing your image, you can then draw over the top of the standard
CStaticcontrol.这里有一些想法：
如果
CStatic::OnPaint()在您的图像上绘制，则尝试先调用它，然后再绘制您的图像。否则，从我对 SS_BLACKRECT 的了解来看，您应该能够通过调用 CDC::FillSolidRect() 传递通过 GetClientRect() 获得的控件矩形来复制它的绘图。 并使用
GetSysColor(COLOR_WINDOWFRAME)返回的颜色Here's a couple ideas:
If
CStatic::OnPaint()draws over your image, then try calling it first and drawing your image afterwards.Otherwise, from what little I've seen of SS_BLACKRECT, you should be able to replicate it's drawing simply be calling
CDC::FillSolidRect()passing the rectangle of your control obtained throughGetClientRect()and using the color returned byGetSysColor(COLOR_WINDOWFRAME)