显示透明背景在按钮上的文本 [英] Display text with transparent background over button
本文介绍了显示透明背景在按钮上的文本的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
您好，我是b $ b $
我现在已经尝试了几天而无法让它发挥作用。
我想在子按钮上设置一个透明的背景文字子标签/按钮/窗口：
$
这与我的差距很近：
b
$ b
使用此代码：
$
#include< windows.h>
#include< tchar.h>
#include< objidl.h>
#include" stdafx.h"
#include" gdiplus.h"
#include< iostream>
#include< string>
Gdiplus :: Bitmap * m_pBitmap;
#define ID_BTNHI 0
const char windowClassName [] =" myWindowClass" ;;
HWND按钮;
class inputButton {
HWND hWnd;
int xpos，ypos;
public：
void createButton（HWND，int，int，int）;
};
void inputButton :: createButton（HWND hWnd，int xpos，int ypos，int nCmdShow）{
//创建按钮
// HWND hButton1 = CreateWindow（ _T（" BUTTON"），_ T（" Test button"），BS_ICON | WS_VISIBLE | WS_CHILD，xpos，ypos，100,100，hWnd，（HMENU）1，NULL，NULL）;
HWND hButton1;
hButton1 = CreateWindowEx（
0，// _In_ DWORD dwExStyle
_T（" BUTTON"），// _ In_opt_ LPCTSTR lpClassName
_T（" Test button"），/ / _In_opt_ LPCTSTR lpWindowName
BS_ICON | WS_VISIBLE | WS_CHILD，// _In_ DWORD dwStyle
xpos，// _In_ int x
ypos，// _In_ int y
100，// _ In_ int nWidth
100，// _In_ int nHeight
hWnd，// _In_opt_ HWND hWndParent
NULL，// _In_opt_ HMENU hMenu
NULL，// _In_opt_ HINSTANCE hInstance
NULL // _In_opt_ LPVOID lpParam
）;
ShowWindow（hButton1，nCmdShow）;
UpdateWindow（hButton1）;
//将图像分配给按钮
Gdiplus :: Bitmap * m_pBitmap;
HICON hicon;
m_pBitmap = Gdiplus :: Bitmap :: FromFile（L" greySwitch.png"）;
m_pBitmap-> GetHICON（& hicon）;
LRESULT lr = SendMessage（hButton1，BM_SETIMAGE，IMAGE_ICON，（LPARAM）hicon）;
DWORD Flags1 = WS_EX_COMPOSITED | WS_EX_LAYERED | WS_EX_NOACTIVATE | WS_EX_TOPMOST | WS_EX_TRANSPARENT;
// DWORD Flags1 = WS_EX_TRANSPARENT;
DWORD Flags2 = WS_POPUP;
HWND hStatic;
hStatic = CreateWindowEx（
WS_EX_TRANSPARENT，// _In_ DWORD dwExStyle
TEXT（" Static"），// _ In_opt_ LPCTSTR lpClassName
TEXT（ " text"），// _In_opt_ LPCTSTR lpWindowName
WS_CHILD | WS_VISIBLE，// _In_ DWORD dwStyle
10，// _In_ int x
40，// _In_ int y
80，// _In_ int nWidth
20，// _In_ int nHeight
hButton1，// _In_opt_ HWND hWndParent
NULL，// _In_opt_ HMENU hMenu
NULL，// _In_opt_ HINSTANCE hInstance
NULL // _In_opt_ LPVOID lpParam
）;
/ *
HRGN GGG = CreateRectRgn（0,0,50,50）;
InvertRgn（GetDC（hStatic），GGG）;
SetWindowRgn（hStatic，GGG，false）;
COLORREF RRR = RGB（255,0,0）;
SetLayeredWindowAttributes（hStatic，RRR，（BYTE）0，LWA_COLORKEY）;
ShowWindow（hStatic，nCmdShow）;
UpdateWindow（hStatic）;
DeleteObject（GGG）;
* /
ShowWindow（hStatic，nCmdShow）;
UpdateWindow（hStatic）;
}
LRESULT CALLBACK WndProc（HWND hWnd，UINT msg，WPARAM wParam，LPARAM lParam）{
int wmId，wmEvent;
PAINTSTRUCT ps;
HDC hdc;
RECT rect;
switch（msg）{
case WM_CLOSE：
DestroyWindow（hWnd）;
休息;
案例WM_DESTROY：
PostQuitMessage（0）;
休息;
case WM_CTLCOLORSTATIC：{
:: MessageBox（NULL，" WM_CTLCOLORSTATIC"，""，MB_OK）;
}
休息;
案例WM_CREATE：{
}
break;
case WM_ERASEBKGND：{
/ *
GetClientRect（hWnd，& rect）;
FillRect（（HDC）wParam，& rect，CreateSolidBrush（RGB（255,0,0）））;
* /
}
休息;
默认值：
返回DefWindowProc（hWnd，msg，wParam，lParam）;
}
返回0;
}
int WINAPI WinMain（HINSTANCE hInstance，HINSTANCE hPrevInstance，LPSTR lpCmdLine，int nCmdShow）{
FreeConsole（）; //隐藏控制台
//初始化GDI +
Gdiplus :: GdiplusStartupInput gdiplusStartupInput;
ULONG_PTR gdiplusToken;
GdiplusStartup（& gdiplusToken，& gdiplusStartupInput，NULL）;
WNDCLASSEX wc;
HWND hWnd;
MSG Msg;
//主窗口的注册窗口类
wc.cbSize = sizeof（WNDCLASSEX）;
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon（NULL，IDI_APPLICATION）;
wc.hIconSm = LoadIcon（NULL，IDI_APPLICATION）;
wc.hCursor = LoadCursor（NULL，IDC_ARROW）;
wc.hbrBackground =（HBRUSH）（COLOR_WINDOW + 1）;
wc.lpszMenuName = NULL;
wc.lpszClassName = windowClassName;
if（！RegisterClassEx（& wc））{
:: MessageBox（NULL，" Window Registration Failed！"，""，MB_OK）;
返回0;
}
//创建主窗口
hWnd = CreateWindowEx（
WS_EX_CLIENTEDGE，
windowClassName，
" C ++ Win32 Window"，
WS_OVERLAPPEDWINDOW，
CW_USEDEFAULT，CW_USEDEFAULT，
600,450，
NULL，NULL，hInstance，NULL
）;
if（hWnd == NULL）{
:: MessageBox（NULL，"Window Creation Failed！"，"""，MB_OK）;
}
ShowWindow（hWnd，nCmdShow）;
UpdateWindow（hWnd）;
inputButton button1;
button1.createButton（hWnd，50,50,1）;
inputButton button2;
button2.createButton（hWnd，150,50,1）;
inputButton button3;
button3.createButton（hWnd，250,50,1）;
inputButton button4;
button3.createButton（hWnd，350,50,1）;
while（GetMessage（& Msg，NULL，0,0）> 0）{
TranslateMessage（& ; MSG）;
DispatchMessage（& Msg）;
}
返回Msg.wParam;
}
毫无疑问，我认为我是C ++和C ++的初学者WinAPI所以对我正在做的事情并不是很了解。确切地说有很多结果，但它们似乎都假设了一些先验知识，只有编码'概念'而不是实际有效的
例子...
任何帮助表示感谢！
< span style ="font-size：0.75em"> *只是为了增加挫折程度，我无法发布图像，直到我的Windows帐户，我已经有10年了，显然已经过验证。为什么那里有选项？ 唉，
顶部图片是一系列按钮，顶部有文本标签，透明背景
解决方案
< blockquote>
概念图片：vesav.com.au/logo/demo1.jpg
进展图片：vesav.com.au/logo/demo2.jpg
Hi there,
I've been experimenting with this for a few days now and can't get it to work.
I am trying to get a transparent background text child label/button/window over a child button:
This is as close as I've got:
Using this code:
#include <windows.h>
#include <tchar.h>
#include <objidl.h>
#include "stdafx.h"
#include "gdiplus.h"
#include <iostream>
#include <string>
Gdiplus::Bitmap* m_pBitmap;
#define ID_BTNHI 0
const char windowClassName[] = "myWindowClass";
HWND button;
class inputButton {
HWND hWnd;
int xpos, ypos;
public:
void createButton(HWND,int, int, int);
};
void inputButton::createButton(HWND hWnd, int xpos, int ypos, int nCmdShow) {
// Create button
//HWND hButton1 = CreateWindow(_T("BUTTON"), _T("Test button"), BS_ICON | WS_VISIBLE | WS_CHILD, xpos, ypos, 100, 100, hWnd, (HMENU)1, NULL, NULL);
HWND hButton1;
hButton1 = CreateWindowEx(
0, // _In_ DWORD dwExStyle
_T("BUTTON"), // _In_opt_ LPCTSTR lpClassName
_T("Test button"), // _In_opt_ LPCTSTR lpWindowName
BS_ICON | WS_VISIBLE | WS_CHILD, // _In_ DWORD dwStyle
xpos, // _In_ int x
ypos, // _In_ int y
100, // _In_ int nWidth
100, // _In_ int nHeight
hWnd, // _In_opt_ HWND hWndParent
NULL, // _In_opt_ HMENU hMenu
NULL, // _In_opt_ HINSTANCE hInstance
NULL // _In_opt_ LPVOID lpParam
);
ShowWindow(hButton1, nCmdShow);
UpdateWindow(hButton1);
// Assign image to button
Gdiplus::Bitmap* m_pBitmap;
HICON hicon;
m_pBitmap = Gdiplus::Bitmap::FromFile(L"greySwitch.png");
m_pBitmap->GetHICON(&hicon);
LRESULT lr = SendMessage(hButton1, BM_SETIMAGE, IMAGE_ICON, (LPARAM)hicon);
DWORD Flags1 = WS_EX_COMPOSITED | WS_EX_LAYERED | WS_EX_NOACTIVATE | WS_EX_TOPMOST | WS_EX_TRANSPARENT;
//DWORD Flags1 = WS_EX_TRANSPARENT;
DWORD Flags2 = WS_POPUP;
HWND hStatic;
hStatic = CreateWindowEx(
WS_EX_TRANSPARENT, // _In_ DWORD dwExStyle
TEXT("Static"), // _In_opt_ LPCTSTR lpClassName
TEXT("text"), // _In_opt_ LPCTSTR lpWindowName
WS_CHILD | WS_VISIBLE, // _In_ DWORD dwStyle
10, // _In_ int x
40, // _In_ int y
80, // _In_ int nWidth
20, // _In_ int nHeight
hButton1, // _In_opt_ HWND hWndParent
NULL, // _In_opt_ HMENU hMenu
NULL, // _In_opt_ HINSTANCE hInstance
NULL // _In_opt_ LPVOID lpParam
);
/*
HRGN GGG = CreateRectRgn(0, 0, 50, 50);
InvertRgn(GetDC(hStatic), GGG);
SetWindowRgn(hStatic, GGG, false);
COLORREF RRR = RGB(255, 0, 0);
SetLayeredWindowAttributes(hStatic, RRR, (BYTE)0, LWA_COLORKEY);
ShowWindow(hStatic, nCmdShow);
UpdateWindow(hStatic);
DeleteObject(GGG);
*/
ShowWindow(hStatic, nCmdShow);
UpdateWindow(hStatic);
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
RECT rect;
switch (msg) {
case WM_CLOSE:
DestroyWindow(hWnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_CTLCOLORSTATIC: {
::MessageBox(NULL, "WM_CTLCOLORSTATIC", "", MB_OK);
}
break;
case WM_CREATE: {
}
break;
case WM_ERASEBKGND: {
/*
GetClientRect(hWnd, &rect);
FillRect((HDC)wParam, &rect, CreateSolidBrush(RGB(255, 0, 0)));
*/
}
break;
default:
return DefWindowProc(hWnd, msg, wParam, lParam);
}
return 0;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
FreeConsole(); //Hides console
// Initialize GDI+
Gdiplus::GdiplusStartupInput gdiplusStartupInput;
ULONG_PTR gdiplusToken;
GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
WNDCLASSEX wc;
HWND hWnd;
MSG Msg;
// Register window class for main window
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wc.lpszMenuName = NULL;
wc.lpszClassName = windowClassName;
if (!RegisterClassEx(&wc)) {
::MessageBox(NULL, "Window Registration Failed!", "", MB_OK);
return 0;
}
// Create main window
hWnd = CreateWindowEx(
WS_EX_CLIENTEDGE,
windowClassName,
"C++ Win32 Window",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
600, 450,
NULL, NULL, hInstance, NULL
);
if (hWnd == NULL) {
::MessageBox(NULL, "Window Creation Failed!", "", MB_OK);
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
inputButton button1;
button1.createButton(hWnd, 50, 50,1);
inputButton button2;
button2.createButton(hWnd, 150, 50, 1);
inputButton button3;
button3.createButton(hWnd, 250, 50, 1);
inputButton button4;
button3.createButton(hWnd, 350, 50, 1);
while (GetMessage(&Msg, NULL, 0, 0) > 0) {
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
return Msg.wParam;
}
As you can no doubt see I'm a beginner to both C++ and WinAPI so don't really know much about what I'm doing. There are quite a few results for exactly this but they all seem to assume some prior knowledge, with only coding 'concept' as opposed to an
example that actually works...
Any help appreciated!
*just to add to the frustration levels, I can't post images until my Windows account, which I've had for 10 years, is verified, apparently. Why have the option there then? Alas the top image is a series of buttons with a text label over the top with a transparent background
解决方案
Concept Image: vesav.com.au/logo/demo1.jpg
Progress Image: vesav.com.au/logo/demo2.jpg
这篇关于显示透明背景在按钮上的文本的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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