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Tom's questions

Martin Hope
Tom
Asked: 2024-10-04 14:26:16 +0800 CST
  • 5

我有以下窗口圆角代码，仅适用于 Win11。现在我需要检测是否使用 Win10，以便以不同的方式对圆角进行处理。

我如何检查此代码是否确实使角变圆，以及/或者是否正在使用 Windows v11 或更新版本？

unit delphi_rounded_corners;

interface

uses
  Windows;

type
  TRoundedWindowCornerType = (RoundedCornerDefault, RoundedCornerOff, RoundedCornerOn, RoundedCornerSmall);

////////////////////////////////////////////////////////////////////////////
//
// Originally written by Ian Barker
//            https://github.com/checkdigits
//            https://about.me/IanBarker
//            [email protected]
//
// Based on an example in an answer during the RAD Studio 11 Launch Q & A
//
//
// Free software - use for any purpose including commercial use.
//
////////////////////////////////////////////////////////////////////////////
//
// Set or prevent Windows 11 from rounding the corners or your application
//
// Usage:
//         SetRoundedCorners(Self.Handle, RoundedCornerSmall);
//
////////////////////////////////////////////////////////////////////////////
///
procedure SetRoundedCorners(const TheHandle: HWND; const CornerType: TRoundedWindowCornerType);

implementation

uses
  Dwmapi;

const

  //
  // More information:
  //      https://docs.microsoft.com/en-us/windows/apps/desktop/modernize/apply-rounded-corners
  //      https://docs.microsoft.com/en-us/windows/win32/api/dwmapi/ne-dwmapi-dwmwindowattribute
  //      https://docs.microsoft.com/en-us/windows/win32/api/dwmapi/nf-dwmapi-dwmsetwindowattribute
  //

  DWMWCP_DEFAULT    = 0; // Let the system decide whether or not to round window corners
  DWMWCP_DONOTROUND = 1; // Never round window corners
  DWMWCP_ROUND      = 2; // Round the corners if appropriate
  DWMWCP_ROUNDSMALL = 3; // Round the corners if appropriate, with a small radius

  DWMWA_WINDOW_CORNER_PREFERENCE = 33; // [set] WINDOW_CORNER_PREFERENCE, Controls the policy that rounds top-level window corners

procedure SetRoundedCorners(const TheHandle: HWND; const CornerType: TRoundedWindowCornerType);
var
  DWM_WINDOW_CORNER_PREFERENCE: DWORD;
begin
  case CornerType of
    RoundedCornerOff:     DWM_WINDOW_CORNER_PREFERENCE := DWMWCP_DONOTROUND;
    RoundedCornerOn:      DWM_WINDOW_CORNER_PREFERENCE := DWMWCP_ROUND;
    RoundedCornerSmall:   DWM_WINDOW_CORNER_PREFERENCE := DWMWCP_ROUNDSMALL;
  else
    DWM_WINDOW_CORNER_PREFERENCE := DWMWCP_DEFAULT;
  end;

  // or simpler, since TRoundedWindowCornerType and
  // the DWM_WINDOW_CORNER_PREFERENCE enum have the
  // same numeric values:
  //
  // DWM_WINDOW_CORNER_PREFERENCE := Ord(CornerType);

  Dwmapi.DwmSetWindowAttribute(TheHandle, DWMWA_WINDOW_CORNER_PREFERENCE, @DWM_WINDOW_CORNER_PREFERENCE, sizeof(DWM_WINDOW_CORNER_PREFERENCE));
end;

end.
delphi
Martin Hope
Tom
Asked: 2024-10-03 14:58:18 +0800 CST
  • 6

如何在 InnoSetup 中预先检查 CPU 是否至少有 1.5GHz（每个单核），以便用户在将我的应用程序安装到他们的设备时不会感到失望，而且速度会太慢？

该代码应该用 C++ 来执行，但是我如何将其转换为 InnoSetup 的 Pascal？

#include <iostream>
#include <windows.h>
#include <comdef.h>
#include <Wbemidl.h>

#pragma comment(lib, "wbemuuid.lib")

bool IsCpuAtLeast1_5GHz() {
    HRESULT hres;

    // Initialize COM.
    hres = CoInitializeEx(0, COINIT_MULTITHREADED);
    if (FAILED(hres)) {
        std::cout << "Failed to initialize COM library. Error code = 0x" 
                  << std::hex << hres << std::endl;
        return false;
    }

    // Initialize security.
    hres = CoInitializeSecurity(
        NULL, 
        -1,                          // COM authentication
        NULL,                        // Authentication services
        NULL,                        // Reserved
        RPC_C_AUTHN_LEVEL_DEFAULT,    // Default authentication 
        RPC_C_IMP_LEVEL_IMPERSONATE,  // Default Impersonation
        NULL,                        // Authentication info
        EOAC_NONE,                   // Additional capabilities
        NULL                         // Reserved
    );

    if (FAILED(hres)) {
        std::cout << "Failed to initialize security. Error code = 0x" 
                  << std::hex << hres << std::endl;
        CoUninitialize();
        return false;
    }

    // Obtain the initial locator to WMI.
    IWbemLocator *pLoc = NULL;

    hres = CoCreateInstance(
        CLSID_WbemLocator,             
        0, 
        CLSCTX_INPROC_SERVER, 
        IID_IWbemLocator, (LPVOID *)&pLoc);

    if (FAILED(hres)) {
        std::cout << "Failed to create IWbemLocator object. "
                  << "Error code = 0x" 
                  << std::hex << hres << std::endl;
        CoUninitialize();
        return false;
    }

    // Connect to WMI.
    IWbemServices *pSvc = NULL;
    hres = pLoc->ConnectServer(
         _bstr_t(L"ROOT\\CIMV2"), // WMI namespace
         NULL,                    // User name (NULL = current user)
         NULL,                    // User password (NULL = current user)
         0,                       // Locale             
         NULL,                    // Security flags
         0,                       // Authority        
         0,                       // Context object        
         &pSvc                    // IWbemServices proxy
    );

    if (FAILED(hres)) {
        std::cout << "Could not connect to WMI. Error code = 0x" 
                  << std::hex << hres << std::endl;
        pLoc->Release();     
        CoUninitialize();
        return false;
    }

    // Set security levels on the proxy.
    hres = CoSetProxyBlanket(
       pSvc,                        // Indicates the proxy to set
       RPC_C_AUTHN_WINNT,           // RPC_C_AUTHN_xxx
       RPC_C_AUTHZ_NONE,            // RPC_C_AUTHZ_xxx
       NULL,                        // Server principal name 
       RPC_C_AUTHN_LEVEL_CALL,      // RPC_C_AUTHN_LEVEL_xxx 
       RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
       NULL,                        // Client identity
       EOAC_NONE                    // Proxy capabilities 
    );

    if (FAILED(hres)) {
        std::cout << "Could not set proxy blanket. Error code = 0x" 
                  << std::hex << hres << std::endl;
        pSvc->Release();
        pLoc->Release();     
        CoUninitialize();
        return false;
    }

    // Use the IWbemServices pointer to make requests of WMI.
    IEnumWbemClassObject* pEnumerator = NULL;
    hres = pSvc->ExecQuery(
        bstr_t("WQL"), 
        bstr_t("SELECT MaxClockSpeed FROM Win32_Processor"),
        WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, 
        NULL,
        &pEnumerator);

    if (FAILED(hres)) {
        std::cout << "WMI query failed. Error code = 0x" 
                  << std::hex << hres << std::endl;
        pSvc->Release();
        pLoc->Release();
        CoUninitialize();
        return false;
    }

    IWbemClassObject *pclsObj = NULL;
    ULONG uReturn = 0;

    // Get the data from the query.
    while (pEnumerator) {
        HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn);

        if (0 == uReturn) {
            break;
        }

        VARIANT vtProp;
        hr = pclsObj->Get(L"MaxClockSpeed", 0, &vtProp, 0, 0);
        
        // Check if the clock speed is greater than or equal to 1500 MHz.
        if (vtProp.intVal >= 1500) {
            pclsObj->Release();
            pSvc->Release();
            pLoc->Release();
            CoUninitialize();
            return true;
        }

        pclsObj->Release();
    }

    // Cleanup.
    pSvc->Release();
    pLoc->Release();
    pEnumerator->Release();
    CoUninitialize();

    return false;
}

int main() {
    if (IsCpuAtLeast1_5GHz()) {
        std::cout << "CPU is 1.5 GHz or higher." << std::endl;
    } else {
        std::cout << "
inno-setup