Fix annotations for WinMain

Fix "C28251 Inconsistent annotation for function" compiler warning by correctly defining WinMain.

README.md

@@ -2,9 +2,9 @@
 
 A utility for switching the resolution of your laptop's display based on the current power state.
 
-Currently a work in progress. Not very useful yet since it doesn't save your preferences. It doesn't even have an icon.
+Currently a work in progress. It works reasonably well for a standard single display configuration, but other scenarios have not been extensively tested, and there are some edge cases that may need to be worked out.
 
-This is a simple C program written using Visual Studio 2022 that has no external dependencies. It should support Windows Vista or higher, but this hasn't been tested yet.
+This is a simple C program written using Visual Studio 2022 that has no external dependencies. It supports Windows Vista or higher.
 
 ## TODO
 - [x] Save preferences to the Windows registry.

WinPowerDMS/WinPowerDMS.c

@@ -1,3 +1,7 @@
+#define WIN32_LEAN_AND_MEAN
+#define _WIN32_WINNT _WIN32_WINNT_VISTA
+#define NTDDI_VERSION NTDDI_VISTA
+
 #include <stdio.h>
 #include <windows.h>
 #include <shellapi.h>
@@ -333,7 +337,7 @@ static LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM l
     return DefWindowProc(hWnd, uMsg, wParam, lParam);
 }
 
-int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
+int WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nShowCmd) {
     if (!LoadPrefs()) { // set both battery and AC to current display mode if there are no preferences set
         DISPLAY_MODE currentMode = GetCurrentDisplayMode();
         userPrefs.modeAC = currentMode;

WinPowerDMS/WinPowerDMS.vcxproj

@@ -82,9 +82,10 @@
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalDependencies>ComCtl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <MinimumRequiredVersion>6.0</MinimumRequiredVersion>
     </Link>
     <Manifest>
-      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <EnableDpiAwareness>true</EnableDpiAwareness>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -100,9 +101,10 @@
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalDependencies>ComCtl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <MinimumRequiredVersion>6.0</MinimumRequiredVersion>
     </Link>
     <Manifest>
-      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <EnableDpiAwareness>true</EnableDpiAwareness>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -116,9 +118,10 @@
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalDependencies>ComCtl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <MinimumRequiredVersion>6.0</MinimumRequiredVersion>
     </Link>
     <Manifest>
-      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <EnableDpiAwareness>true</EnableDpiAwareness>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -134,9 +137,10 @@
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalDependencies>ComCtl32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <MinimumRequiredVersion>6.0</MinimumRequiredVersion>
     </Link>
     <Manifest>
-      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <EnableDpiAwareness>true</EnableDpiAwareness>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemGroup>