From 7b7fcdfef7487770d3089bafaedf467e30ed3afe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Fri, 1 Apr 2022 13:29:25 +0200
Subject: Support per-monitor DPI.

---
 c/main.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'c/main.c')

diff --git a/c/main.c b/c/main.c
index 4b3a91d..3f60407 100644
--- a/c/main.c
+++ b/c/main.c
@@ -11,6 +11,7 @@ HFONT HfBold;
 HMENU HPopupMenu;
 HWND HFocus;
 HWND HWnd;
+int IDPI = -1;
 static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
 static INT_PTR CALLBACK AboutDlgProc(HWND, UINT, WPARAM, LPARAM);
 static int Attach(void);
@@ -60,6 +61,7 @@ WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 	tszErr = TEXT("Could not register window class.");
 	if (!RegisterClassEx(&wc)) goto f;
 
+
 	/* Create window. */
 
 	hWnd = CreateWindowEx(
@@ -67,11 +69,12 @@ WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 	    TEXT("Episode Browser"),
 	    TEXT("Episode Browser"),
 	    WS_OVERLAPPEDWINDOW,
-	    CW_USEDEFAULT, CW_USEDEFAULT, 510, 400,
+	    CW_USEDEFAULT, CW_USEDEFAULT, 0, 0,
 	    NULL, NULL, hInstance, NULL
 	);
 	tszErr = TEXT("Could not create main window.");
 	if (!hWnd) goto f;
+	SetWindowPos(hWnd, NULL, -1, -1, Dpi(510), Dpi(400), SWP_NOMOVE);
 	SetupFonts();
 	ShowWindow(hWnd, nCmdShow);
 
@@ -121,6 +124,19 @@ WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 	case WM_THEMECHANGED:
 		UpdateTheme();
 		break;
+	case 0x02E0: /* WM_DPICHANGED */
+	    {
+		LPRECT lpr;
+		lpr = (LPRECT)lParam;
+		IDPI = HIWORD(wParam);
+		SetWindowPos(hWnd, NULL,
+		    lpr->left, lpr->top,
+		    lpr->right-lpr->left,
+		    lpr->bottom-lpr->top,
+		    SWP_NOZORDER | SWP_NOACTIVATE);
+		UpdateLayout();
+		break;
+	    }
 	case WM_ACTIVATE:
 		switch (wParam) {
 		case WA_INACTIVE:
-- 
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