121 lines
3.4 KiB
C++
121 lines
3.4 KiB
C++
#include "pch.h"
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#include "CDesktop.h"
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#include "GdCpp.h"
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#include <windows.h>
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#include <wingdi.h>
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CDesktop::CDesktop()
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{
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INT iNumber = 0;
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BOOL bFlag = TRUE;
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DISPLAY_DEVICE dd;
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ZeroMemory(&dd, sizeof(dd));
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dd.cb = sizeof(dd);
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DEVMODE devMode;
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ZeroMemory(&devMode, sizeof(devMode));
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devMode.dmSize = sizeof(devMode);
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// FixMe：这里只能获取到显卡连接的显示器，获取不到USB-C显示器
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// 而且双显示器分辨率不同时，有时第二个显示器的宽、高变大。
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do
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{
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bFlag = EnumDisplayDevices(NULL, iNumber, &dd, 0);
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bFlag = bFlag && EnumDisplaySettings(dd.DeviceName, ENUM_CURRENT_SETTINGS, &devMode);
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if (bFlag) {
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RECT r;
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r.left= devMode.dmPosition.x;
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r.top = devMode.dmPosition.y;
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r.right = r.left + devMode.dmPelsWidth;
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r.bottom = r.top + devMode.dmPelsHeight;
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screen.push_back(r);
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iNumber += 1;
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}
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} while (bFlag);
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}
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void CDesktop::TestDesktop()
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{
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auto *desktop = new CDesktop();
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auto num = desktop->screen.size();
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if (num == 0) {
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alog->error("No Screen found!");
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return;
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}
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for (int i = 0; i < num; i++) {
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auto &s = desktop->screen[i];
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alog->info("Screen {}: {}, {}, {}, {}", s.left, s.top, s.right - s.left, s.bottom - s.top);
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}
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delete desktop;
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}
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#include <iostream>
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#include <Windows.h>
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#include <ShellScalingApi.h>
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// 链接Shcore.lib
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#pragma comment(lib, "Shcore.lib")
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//BOOL CALLBACK MonitorEnumProc(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData)
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//{
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// MONITORINFOEX monitorInfo;
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// monitorInfo.cbSize = sizeof(MONITORINFOEX);
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// GetMonitorInfo(hMonitor, &monitorInfo);
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//
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// UINT dpiX, dpiY;
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// if (GetDpiForMonitor(hMonitor, MDT_EFFECTIVE_DPI, &dpiX, &dpiY) == S_OK) {
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// std::cout << "Monitor " << monitorInfo.szDevice << " DPI: " << dpiX << std::endl;
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// }
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//
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// return TRUE;
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//}
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// 回调函数用于获取每个显示器的信息
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BOOL CALLBACK MonitorEnumProc(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData)
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{
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MONITORINFOEX monitorInfo;
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monitorInfo.cbSize = sizeof(MONITORINFOEX);
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GetMonitorInfo(hMonitor, &monitorInfo);
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DISPLAY_DEVICE displayDevice;
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displayDevice.cb = sizeof(DISPLAY_DEVICE);
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EnumDisplayDevices(monitorInfo.szDevice, 0, &displayDevice, 0);
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std::wcout << L"Display Device Name: " << displayDevice.DeviceName << std::endl;
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std::wcout << L"Monitor Name: " << monitorInfo.szDevice << std::endl;
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std::cout << "Monitor Resolution: " << monitorInfo.rcMonitor.right - monitorInfo.rcMonitor.left << "x"
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<< monitorInfo.rcMonitor.bottom - monitorInfo.rcMonitor.top << std::endl;
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std::cout << "Monitor Position: (" << monitorInfo.rcMonitor.left << ", " << monitorInfo.rcMonitor.top << ")"
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<< std::endl;
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// DPI信息获取
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UINT dpiX, dpiY;
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if (GetDpiForMonitor(hMonitor, MDT_EFFECTIVE_DPI, &dpiX, &dpiY) == S_OK) {
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std::cout << "Monitor DPI: " << "x=" << dpiX << ", y=" << dpiY << std::endl;
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}
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std::cout << std::endl;
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return TRUE;
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}
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void TestGetDpi() {
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// 获取系统的DPI
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int dpiX = GetDpiForSystem();
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std::cout << "System DPI: " << dpiX << std::endl;
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// 获取主显示器桌面的DPI
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HWND hWndDesktop = GetDesktopWindow();
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if (hWndDesktop != NULL) {
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HMONITOR hMonitor = MonitorFromWindow(hWndDesktop, MONITOR_DEFAULTTONEAREST);
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UINT dpiX, dpiY;
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if (GetDpiForMonitor(hMonitor, MDT_EFFECTIVE_DPI, &dpiX, &dpiY) == S_OK) {
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std::cout << "Desktop DPI: " << dpiX << std::endl;
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}
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}
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std::cout << std::endl;
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// 遍历所有显示器的DPI
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EnumDisplayMonitors(NULL, NULL, MonitorEnumProc, 0);
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} |