/// <summary>
/// Static ctor. We just set up a few per-process globals here
/// </summary>
static ComponentManagerBroker()
{
int pid = SafeNativeMethods.GetCurrentProcessId();
_syncObject = new object();
_remoteObjectName = string.Format(CultureInfo.CurrentCulture, "ComponentManagerBroker.{0}.{1:X}", Application.WindowsFormsVersion, pid);
}
internal static void InitializeDpiHelperForWinforms()
{
if (s_isInitializeDpiHelperForWinforms)
{
return;
}
// initialize shared fields
Initialize();
if (OsVersion.IsWindows10_1607OrGreater)
{
// We are on Windows 10/1603 or greater, but we could still be DpiUnaware or SystemAware, so let's find that out...
var currentProcessId = SafeNativeMethods.GetCurrentProcessId();
IntPtr hProcess = SafeNativeMethods.OpenProcess(SafeNativeMethods.PROCESS_QUERY_INFORMATION, false, currentProcessId);
SafeNativeMethods.GetProcessDpiAwareness(hProcess, out CAPS.PROCESS_DPI_AWARENESS processDpiAwareness);
// Only if we're not, it makes sense to query for PerMonitorV2 awareness from now on, if needed.
if (!(processDpiAwareness == CAPS.PROCESS_DPI_AWARENESS.PROCESS_DPI_UNAWARE ||
processDpiAwareness == CAPS.PROCESS_DPI_AWARENESS.PROCESS_SYSTEM_DPI_AWARE))
{
s_doesNeedQueryForPerMonitorV2Awareness = true;
}
}
if (IsScalingRequired || s_doesNeedQueryForPerMonitorV2Awareness)
{
s_isScalingRequirementMet = true;
}
s_isInitializeDpiHelperForWinforms = true;
}
internal static void InitializeDpiHelperForWinforms()
{
if (isInitializeDpiHelperForWinforms)
{
return;
}
// initialize shared fields
Initialize();
// We are in Windows 10/1603 or greater when this API is present.
if (ApiHelper.IsApiAvailable(ExternDll.User32, nameof(CommonUnsafeNativeMethods.GetThreadDpiAwarenessContext)))
{
// We are on Windows 10/1603 or greater all right, but we could still be DpiUnaware or SystemAware, so let's find that out...
var currentProcessId = SafeNativeMethods.GetCurrentProcessId();
IntPtr hProcess = SafeNativeMethods.OpenProcess(SafeNativeMethods.PROCESS_QUERY_INFORMATION, false, currentProcessId);
var result = SafeNativeMethods.GetProcessDpiAwareness(hProcess, out CAPS.PROCESS_DPI_AWARENESS processDpiAwareness);
// Only if we're not, it makes sense to query for PerMonitorV2 awareness from now on, if needed.
if (!(processDpiAwareness == CAPS.PROCESS_DPI_AWARENESS.PROCESS_DPI_UNAWARE ||
processDpiAwareness == CAPS.PROCESS_DPI_AWARENESS.PROCESS_SYSTEM_DPI_AWARE))
{
doesNeedQueryForPerMonitorV2Awareness = true;
}
}
if (IsScalingRequired || doesNeedQueryForPerMonitorV2Awareness)
{
isScalingRequirementMet = true;
}
isInitializeDpiHelperForWinforms = true;
}