From 1e23a3cd9162df098a302f22d70f2ac50b5eae21 Mon Sep 17 00:00:00 2001
From: Jakub <jakubshark@gmail.com>
Date: Tue, 14 Apr 2020 09:07:57 -0700
Subject: [PATCH] Added gdi32.zig and More user32 definitions

---
 lib/std/os/windows.zig        |   1 +
 lib/std/os/windows/bits.zig   |   2 +
 lib/std/os/windows/gdi32.zig  |  45 +++++++++++
 lib/std/os/windows/user32.zig | 139 +++++++++++++++++++++++++++++++++-
 4 files changed, 185 insertions(+), 2 deletions(-)
 create mode 100644 lib/std/os/windows/gdi32.zig

diff --git a/lib/std/os/windows.zig b/lib/std/os/windows.zig
index 882e5dbed..9cf90efff 100644
--- a/lib/std/os/windows.zig
+++ b/lib/std/os/windows.zig
@@ -19,6 +19,7 @@ pub const psapi = @import("windows/psapi.zig");
 pub const shell32 = @import("windows/shell32.zig");
 pub const user32 = @import("windows/user32.zig");
 pub const ws2_32 = @import("windows/ws2_32.zig");
+pub const gdi32 = @import("windows/gdi32.zig");
 
 pub usingnamespace @import("windows/bits.zig");
 
diff --git a/lib/std/os/windows/bits.zig b/lib/std/os/windows/bits.zig
index 6d6f3644c..0708ed208 100644
--- a/lib/std/os/windows/bits.zig
+++ b/lib/std/os/windows/bits.zig
@@ -34,6 +34,8 @@ pub const HINSTANCE = *@OpaqueType();
 pub const HMENU = *@OpaqueType();
 pub const HMODULE = *@OpaqueType();
 pub const HWND = *@OpaqueType();
+pub const HDC = *@OpaqueType();
+pub const HGLRC = *@OpaqueType();
 pub const FARPROC = *@OpaqueType();
 pub const INT = c_int;
 pub const LPBYTE = *BYTE;
diff --git a/lib/std/os/windows/gdi32.zig b/lib/std/os/windows/gdi32.zig
new file mode 100644
index 000000000..3377b37f6
--- /dev/null
+++ b/lib/std/os/windows/gdi32.zig
@@ -0,0 +1,45 @@
+usingnamespace @import("bits.zig");
+
+pub const PIXELFORMATDESCRIPTOR = extern struct {
+    nSize: WORD = @sizeOf(PIXELFORMATDESCRIPTOR),
+    nVersion: WORD,
+    dwFlags: DWORD,
+    iPixelType: BYTE,
+    cColorBits: BYTE,
+    cRedBits: BYTE,
+    cRedShift: BYTE,
+    cGreenBits: BYTE,
+    cGreenShift: BYTE,
+    cBlueBits: BYTE,
+    cBlueShift: BYTE,
+    cAlphaBits: BYTE,
+    cAlphaShift: BYTE,
+    cAccumBits: BYTE,
+    cAccumRedBits: BYTE,
+    cAccumGreenBits: BYTE,
+    cAccumBlueBits: BYTE,
+    cAccumAlphaBits: BYTE,
+    cDepthBits: BYTE,
+    cStencilBits: BYTE,
+    cAuxBuffers: BYTE,
+    iLayerType: BYTE,
+    bReserved: BYTE,
+    dwLayerMask: DWORD,
+    dwVisibleMask: DWORD,
+    dwDamageMask: DWORD,
+};
+
+pub extern "gdi32" fn SetPixelFormat(
+    hdc: ?HDC,
+    format: i32,
+    ppfd: ?*const PIXELFORMATDESCRIPTOR,
+) callconv(.Stdcall) bool;
+
+pub extern "gdi32" fn ChoosePixelFormat(
+    hdc: ?HDC,
+    ppfd: ?*const PIXELFORMATDESCRIPTOR,
+) callconv(.Stdcall) i32;
+
+pub extern "gdi32" fn SwapBuffers(hdc: ?HDC) callconv(.Stdcall) bool;
+pub extern "gdi32" fn wglCreateContext(hdc: ?HDC) callconv(.Stdcall) ?HGLRC;
+pub extern "gdi32" fn wglMakeCurrent(hdc: ?HDC, hglrc: ?HGLRC) callconv(.Stdcall) bool;
\ No newline at end of file
diff --git a/lib/std/os/windows/user32.zig b/lib/std/os/windows/user32.zig
index f24f20cfc..336fc3841 100644
--- a/lib/std/os/windows/user32.zig
+++ b/lib/std/os/windows/user32.zig
@@ -1,5 +1,104 @@
 usingnamespace @import("bits.zig");
 
+// PM
+pub const PM_REMOVE = 0x0001;
+pub const PM_NOREMOVE = 0x0000;
+pub const PM_NOYIELD = 0x0002;
+
+// WM
+pub const WM_NULL = 0x0000;
+pub const WM_CREATE = 0x0001;
+pub const WM_DESTROY = 0x0002;
+pub const WM_MOVE = 0x0003;
+pub const WM_SIZE = 0x0005;
+
+pub const WM_ACTIVATE = 0x0006;
+pub const WM_PAINT = 0x000F;
+pub const WM_CLOSE = 0x0010;
+pub const WM_QUIT = 0x0012;
+pub const WM_SETFOCUS = 0x0007;
+
+pub const WM_KILLFOCUS = 0x0008;
+pub const WM_ENABLE = 0x000A;
+pub const WM_SETREDRAW = 0x000B;
+
+pub const WM_SYSCOLORCHANGE = 0x0015;
+pub const WM_SHOWWINDOW = 0x0018;
+
+pub const WM_WINDOWPOSCHANGING = 0x0046;
+pub const WM_WINDOWPOSCHANGED = 0x0047;
+pub const WM_POWER = 0x0048;
+
+pub const WM_CONTEXTMENU = 0x007B;
+pub const WM_STYLECHANGING = 0x007C;
+pub const WM_STYLECHANGED = 0x007D;
+pub const WM_DISPLAYCHANGE = 0x007E;
+pub const WM_GETICON = 0x007F;
+pub const WM_SETICON = 0x0080;
+
+pub const WM_INPUT_DEVICE_CHANGE = 0x00fe;
+pub const WM_INPUT = 0x00FF;
+pub const WM_KEYFIRST = 0x0100;
+pub const WM_KEYDOWN = 0x0100;
+pub const WM_KEYUP = 0x0101;
+pub const WM_CHAR = 0x0102;
+pub const WM_DEADCHAR = 0x0103;
+pub const WM_SYSKEYDOWN = 0x0104;
+pub const WM_SYSKEYUP = 0x0105;
+pub const WM_SYSCHAR = 0x0106;
+pub const WM_SYSDEADCHAR = 0x0107;
+pub const WM_UNICHAR = 0x0109;
+pub const WM_KEYLAST = 0x0109;
+
+pub const WM_COMMAND = 0x0111;
+pub const WM_SYSCOMMAND = 0x0112;
+pub const WM_TIMER = 0x0113;
+
+pub const WM_MOUSEFIRST = 0x0200;
+pub const WM_MOUSEMOVE = 0x0200;
+pub const WM_LBUTTONDOWN = 0x0201;
+pub const WM_LBUTTONUP = 0x0202;
+pub const WM_LBUTTONDBLCLK = 0x0203;
+pub const WM_RBUTTONDOWN = 0x0204;
+pub const WM_RBUTTONUP = 0x0205;
+pub const WM_RBUTTONDBLCLK = 0x0206;
+pub const WM_MBUTTONDOWN = 0x0207;
+pub const WM_MBUTTONUP = 0x0208;
+pub const WM_MBUTTONDBLCLK = 0x0209;
+pub const WM_MOUSEWHEEL = 0x020A;
+pub const WM_XBUTTONDOWN = 0x020B;
+pub const WM_XBUTTONUP = 0x020C;
+pub const WM_XBUTTONDBLCLK = 0x020D;
+
+// WA
+pub const WA_INACTIVE = 0;
+pub const WA_ACTIVE = 0x0006;
+pub const WM_ACTIVATE = 0x0006;
+
+// WS
+pub const WS_OVERLAPPED = 0x00000000;
+pub const WS_CAPTION = 0x00C00000;
+pub const WS_SYSMENU = 0x00080000;
+pub const WS_THICKFRAME = 0x00040000;
+pub const WS_MINIMIZEBOX = 0x00020000;
+pub const WS_MAXIMIZEBOX = 0x00010000;
+
+// PFD
+pub const PFD_DRAW_TO_WINDOW = 0x00000004;
+pub const PFD_SUPPORT_OPENGL = 0x00000020;
+pub const PFD_DOUBLEBUFFER = 0x00000001;
+pub const PFD_MAIN_PLANE = 0;
+pub const PFD_TYPE_RGBA = 0;
+
+// CS
+pub const CS_HREDRAW = 0x0002;
+pub const CS_VREDRAW = 0x0001;
+pub const CS_OWNDC = 0x0020;
+
+// SW
+pub const SW_HIDE = 0;
+pub const SW_SHOW = 5;
+
 pub const WNDPROC = fn (HWND, UINT, WPARAM, LPARAM) callconv(.Stdcall) LRESULT;
 
 pub const WNDCLASSEXA = extern struct {
@@ -17,6 +116,20 @@ pub const WNDCLASSEXA = extern struct {
     hIconSm: ?HICON,
 };
 
+pub const POINT = extern struct {
+    x: c_long, y: c_long
+};
+
+pub const MSG = extern struct {
+    hWnd: ?HWND,
+    message: UINT,
+    wParam: WPARAM,
+    lParam: LPARAM,
+    time: DWORD,
+    pt: POINT,
+    lPrivate: DWORD,
+};
+
 pub extern "user32" fn CreateWindowExA(
     dwExStyle: DWORD,
     lpClassName: LPCSTR,
@@ -32,6 +145,28 @@ pub extern "user32" fn CreateWindowExA(
     lpParam: ?LPVOID,
 ) callconv(.Stdcall) ?HWND;
 
-pub extern "user32" fn DefWindowProcA(HWND, Msg: UINT, WPARAM, LPARAM) callconv(.Stdcall) LRESULT;
-
 pub extern "user32" fn RegisterClassExA(*const WNDCLASSEXA) callconv(.Stdcall) c_ushort;
+pub extern "user32" fn DefWindowProcA(HWND, Msg: UINT, WPARAM, LPARAM) callconv(.Stdcall) LRESULT;
+pub extern "user32" fn GetModuleHandleA(lpModuleName: ?LPCSTR) callconv(.Stdcall) HMODULE;
+pub extern "user32" fn ShowWindow(hWnd: ?HWND, nCmdShow: i32) callconv(.Stdcall) bool;
+pub extern "user32" fn UpdateWindow(hWnd: ?HWND) callconv(.Stdcall) bool;
+pub extern "user32" fn GetDC(hWnd: ?HWND) callconv(.Stdcall) ?HDC;
+
+pub extern "user32" fn PeekMessageA(
+    lpMsg: ?*MSG,
+    hWnd: ?HWND,
+    wMsgFilterMin: UINT,
+    wMsgFilterMax: UINT,
+    wRemoveMsg: UINT,
+) callconv(.Stdcall) bool;
+
+pub extern "user32" fn GetMessageA(
+    lpMsg: ?*MSG,
+    hWnd: ?HWND,
+    wMsgFilterMin: UINT,
+    wMsgFilterMax: UINT,
+) callconv(.Stdcall) bool;
+
+pub extern "user32" fn TranslateMessage(lpMsg: *const MSG) callconv(.Stdcall) bool;
+pub extern "user32" fn DispatchMessageA(lpMsg: *const MSG) callconv(.Stdcall) LRESULT;
+pub extern "user32" fn PostQuitMessage(nExitCode: i32) callconv(.Stdcall) void;
\ No newline at end of file