英文:
c++ | Creating transparent parent window without using LWA_COLORKEY or effecting child windows
问题
我正在尝试让我的父窗口变成透明，但不影响我的子窗口的透明度。
我尝试使用LWA_ALPHA，但这也改变了子窗口的透明度，这不是我想要的。
LWA_COLORKEY 有效，但我意识到你不能拥有半透明的效果，而且会降低你的帧速率，所以我不想使用这个，因为它不适用于我想要实现的效果。
我还尝试了dwextendmargin，但似乎没有任何作用。
任何帮助都将不胜感激。
这是我的窗口和窗口类的代码：
//注册窗口类
WNDCLASSEX wc = {
sizeof(WNDCLASSEX),
CS_CLASSDC | CS_HREDRAW | CS_VREDRAW,
WndProc,
0L,
0L,
hInst,
NULL,
NULL, NULL,
NULL,
_T(" "),
NULL
};
RegisterClassExA(&wc);
//创建窗口
wnd = CreateWindowExA( //父窗口
WS_EX_TOPMOST,
wc.lpszClassName,
"",
WS_POPUP | WS_VISIBLE | WS_EX_TRANSPARENT | WS_CLIPCHILDREN,
0, 0, //位置
sInfo->Width, sInfo->Height, //大小
NULL,
NULL,
hInst,
NULL);
child = CreateWindowA(
wc.lpszClassName,
"",
WS_CHILD | WS_VISIBLE,
0, 0,
sInfo->Width, sInfo->Height,
wnd,
NULL,
hInst,
NULL);
英文:
I am trying to have my parent window transparent and my child window not effected by this transparency.
I did use LWA_alpha but that changed the transparency of the child window aswell which I do not want.
LWA_colorkey was working but I realised you cannot have something semi transparent, and it also halfs your fps so i dont want to use this as it doesnt work for what I want to make.
I have also used the dwextendmargin thing but this didnt seem to do anything.
Any help would be appriciated.
Here is the code for my windows and window's class
//Register Window Class
WNDCLASSEX wc = {
sizeof(WNDCLASSEX),
CS_CLASSDC | CS_HREDRAW | CS_VREDRAW,
WndProc,
0L,
0L,
hInst,
NULL,
NULL, NULL,
NULL,
_T(" "),
NULL
};
RegisterClassExA(&wc);
//Create Window
wnd = CreateWindowExA( //parent window
WS_EX_TOPMOST,
wc.lpszClassName,
"",
WS_POPUP | WS_VISIBLE | WS_EX_TRANSPARENT | WS_CLIPCHILDREN,
0, 0, //Pos
sInfo->Width, sInfo->Height, //Size
NULL,
NULL,
hInst,
NULL);
child = CreateWindowA(
wc.lpszClassName,
"",
WS_CHILD | WS_VISIBLE,
0, 0,
sInfo->Width, sInfo->Height,
wnd,
NULL,
hInst,
NULL);
答案1
得分: 0
我最终决定切换到OpenGL，因为这样做会容易得多。
英文:
I ended up just switching to opengl as it was alot easier to do this task.
答案2
得分: -2
使用以下代码：
SetLayeredWindowAttributes(hwnd, RGB(255,0,0), 0, LWA_COLORKEY);
英文:
Use this
SetLayeredWindowAttributes(hwnd, RGB(255,0,0), 0, LWA_COLORKEY);
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论