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comparison src/sys/win32/dark_theme.cc @ 196:f0ff06a45c42

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date: use std::optional for values
author Paper <mrpapersonic@gmail.com>
date Thu, 07 Dec 2023 16:28:11 -0500
parents bc8d2ccff09c
children 862d0d8619f6
comparison
equal deleted inserted replaced
195:975a3f0965e2 196:f0ff06a45c42
23 23
24 HRESULT SetWindowAttribute(HWND hWnd, DWORD key, LPCVOID data, DWORD sz_data) { 24 HRESULT SetWindowAttribute(HWND hWnd, DWORD key, LPCVOID data, DWORD sz_data) {
25 if (!library.get()) 25 if (!library.get())
26 return E_POINTER; 26 return E_POINTER;
27 27
28 /* GCC throws a fit here because C/C++ lacks a "generic" function pointer type. 28 // GCC throws a fit here because C/C++ lacks a "generic" function pointer type.
29 Ignore. */ 29 // Ignore.
30 auto set_wind_attrib = reinterpret_cast<decltype(::DwmSetWindowAttribute)*>(GetProcAddress(library.get(), "DwmSetWindowAttribute")); 30 auto set_wind_attrib = reinterpret_cast<decltype(::DwmSetWindowAttribute)*>(GetProcAddress(library.get(), "DwmSetWindowAttribute"));
31 if (!set_wind_attrib) 31 if (!set_wind_attrib)
32 return E_POINTER; 32 return E_POINTER;
33 33
34 return set_wind_attrib(hWnd, key, data, sz_data); 34 return set_wind_attrib(hWnd, key, data, sz_data);
40 40
41 Dwmapi dwmapi; 41 Dwmapi dwmapi;
42 42
43 namespace win32 { 43 namespace win32 {
44 44
45 /* NOTE: explicit conversion from builtin `bool` and win32 `BOOL` IS allowed. */
46 bool SetTitleBarToBlack(QWidget* win, bool enabled) { 45 bool SetTitleBarToBlack(QWidget* win, bool enabled) {
46 /* 19 and 20 are *both* DWMWA_USE_IMMERSIVE_DARK_MODE.
47 *
48 * It's 20 on newer versions of windows (i.e. win11 and late win10),
49 * but it's 19 on very old versions of win10 nobody ought to be using anymore.
50 */
51 static constexpr DWORD DWMWA_USE_IMMERSIVE_DARK_MODE_OLD = 19;
52 static constexpr DWORD DWMWA_USE_IMMERSIVE_DARK_MODE = 20;
53
47 BOOL b = enabled; 54 BOOL b = enabled;
48 55
49 /* MAGIC NUMBERS: 19 and 20 are both DWMWA_USE_IMMERSIVE_DARK_MODE.
50 For clarification: it's 20 on newer versions of windows (i.e. win11 and late win10),
51 but it's 19 on very old versions of win10 nobody ought to be using anymore. */
52 { 56 {
53 HRESULT result = dwmapi.SetWindowAttribute(reinterpret_cast<HWND>(win->winId()), 20, &b, sizeof(b)); 57 HRESULT result = dwmapi.SetWindowAttribute(reinterpret_cast<HWND>(win->winId()), DWMWA_USE_IMMERSIVE_DARK_MODE, &b, sizeof(b));
54 if (result == S_OK) 58 if (result == S_OK)
55 return b; 59 return b;
56 } 60 }
57 61
58 { 62 {
59 HRESULT result = dwmapi.SetWindowAttribute(reinterpret_cast<HWND>(win->winId()), 19, &b, sizeof(b)); 63 HRESULT result = dwmapi.SetWindowAttribute(reinterpret_cast<HWND>(win->winId()), DWMWA_USE_IMMERSIVE_DARK_MODE_OLD, &b, sizeof(b));
60 if (result == S_OK) 64 if (result == S_OK)
61 return b; 65 return b;
62 } 66 }
63 67
64 return b; 68 return b;