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Further dark magic, no pun intended. Now for the menu bar.
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,111 @@ | ||
| #include "Common/CommonWindows.h" | ||
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| #include <Uxtheme.h> | ||
| #include <vsstyle.h> | ||
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| #include "Windows/W32Util/UAHMenuBar.h" | ||
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| static HTHEME g_menuTheme = nullptr; | ||
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| // processes messages related to UAH / custom menubar drawing. | ||
| // return true if handled, false to continue with normal processing in your wndproc | ||
| bool UAHDarkModeWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, LRESULT *lr) | ||
| { | ||
| switch (message) | ||
| { | ||
| case WM_UAHDRAWMENU: | ||
| { | ||
| UAHMENU *pUDM = (UAHMENU *)lParam; | ||
| RECT rc = { 0 }; | ||
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| // get the menubar rect | ||
| { | ||
| MENUBARINFO mbi = { sizeof(mbi) }; | ||
| GetMenuBarInfo(hWnd, OBJID_MENU, 0, &mbi); | ||
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| RECT rcWindow; | ||
| GetWindowRect(hWnd, &rcWindow); | ||
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| // the rcBar is offset by the window rect | ||
| rc = mbi.rcBar; | ||
| OffsetRect(&rc, -rcWindow.left, -rcWindow.top); | ||
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| rc.top -= 1; | ||
| } | ||
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| if (!g_menuTheme) { | ||
| g_menuTheme = OpenThemeData(hWnd, L"Menu"); | ||
| } | ||
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| DrawThemeBackground(g_menuTheme, pUDM->hdc, MENU_POPUPITEM, MPI_NORMAL, &rc, nullptr); | ||
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| return true; | ||
| } | ||
| case WM_UAHDRAWMENUITEM: | ||
| { | ||
| UAHDRAWMENUITEM *pUDMI = (UAHDRAWMENUITEM *)lParam; | ||
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| // get the menu item string | ||
| wchar_t menuString[256] = { 0 }; | ||
| MENUITEMINFO mii = { sizeof(mii), MIIM_STRING }; | ||
| { | ||
| mii.dwTypeData = menuString; | ||
| mii.cch = (sizeof(menuString) / 2) - 1; | ||
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| GetMenuItemInfo(pUDMI->um.hmenu, pUDMI->umi.iPosition, TRUE, &mii); | ||
| } | ||
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| // get the item state for drawing | ||
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| DWORD dwFlags = DT_CENTER | DT_SINGLELINE | DT_VCENTER; | ||
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| int iTextStateID = 0; | ||
| int iBackgroundStateID = 0; | ||
| { | ||
| if ((pUDMI->dis.itemState & ODS_INACTIVE) | (pUDMI->dis.itemState & ODS_DEFAULT)) { | ||
| // normal display | ||
| iTextStateID = MPI_NORMAL; | ||
| iBackgroundStateID = MPI_NORMAL; | ||
| } | ||
| if (pUDMI->dis.itemState & ODS_HOTLIGHT) { | ||
| // hot tracking | ||
| iTextStateID = MPI_HOT; | ||
| iBackgroundStateID = MPI_HOT; | ||
| } | ||
| if (pUDMI->dis.itemState & ODS_SELECTED) { | ||
| // clicked -- MENU_POPUPITEM has no state for this, though MENU_BARITEM does | ||
| iTextStateID = MPI_HOT; | ||
| iBackgroundStateID = MPI_HOT; | ||
| } | ||
| if ((pUDMI->dis.itemState & ODS_GRAYED) || (pUDMI->dis.itemState & ODS_DISABLED)) { | ||
| // disabled / grey text | ||
| iTextStateID = MPI_DISABLED; | ||
| iBackgroundStateID = MPI_DISABLED; | ||
| } | ||
| if (pUDMI->dis.itemState & ODS_NOACCEL) { | ||
| dwFlags |= DT_HIDEPREFIX; | ||
| } | ||
| } | ||
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| if (!g_menuTheme) { | ||
| g_menuTheme = OpenThemeData(hWnd, L"Menu"); | ||
| } | ||
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| DrawThemeBackground(g_menuTheme, pUDMI->um.hdc, MENU_POPUPITEM, iBackgroundStateID, &pUDMI->dis.rcItem, nullptr); | ||
| DrawThemeText(g_menuTheme, pUDMI->um.hdc, MENU_POPUPITEM, iTextStateID, menuString, mii.cch, dwFlags, 0, &pUDMI->dis.rcItem); | ||
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| return true; | ||
| } | ||
| case WM_THEMECHANGED: | ||
| { | ||
| if (g_menuTheme) { | ||
| CloseThemeData(g_menuTheme); | ||
| g_menuTheme = nullptr; | ||
| } | ||
| // continue processing in main wndproc | ||
| return false; | ||
| } | ||
| default: | ||
| return false; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| #pragma once | ||
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| // MIT license, see LICENSE | ||
| // Copyright(c) 2021 adzm / Adam D. Walling | ||
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| // processes messages related to UAH / custom menubar drawing. | ||
| // return true if handled, false to continue with normal processing in your wndproc | ||
| bool UAHDarkModeWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, LRESULT* lr); | ||
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| // window messages related to menu bar drawing | ||
| #define WM_UAHDESTROYWINDOW 0x0090 // handled by DefWindowProc | ||
| #define WM_UAHDRAWMENU 0x0091 // lParam is UAHMENU | ||
| #define WM_UAHDRAWMENUITEM 0x0092 // lParam is UAHDRAWMENUITEM | ||
| #define WM_UAHINITMENU 0x0093 // handled by DefWindowProc | ||
| #define WM_UAHMEASUREMENUITEM 0x0094 // lParam is UAHMEASUREMENUITEM | ||
| #define WM_UAHNCPAINTMENUPOPUP 0x0095 // handled by DefWindowProc | ||
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| // describes the sizes of the menu bar or menu item | ||
| typedef union tagUAHMENUITEMMETRICS | ||
| { | ||
| // cx appears to be 14 / 0xE less than rcItem's width! | ||
| // cy 0x14 seems stable, i wonder if it is 4 less than rcItem's height which is always 24 atm | ||
| struct { | ||
| DWORD cx; | ||
| DWORD cy; | ||
| } rgsizeBar[2]; | ||
| struct { | ||
| DWORD cx; | ||
| DWORD cy; | ||
| } rgsizePopup[4]; | ||
| } UAHMENUITEMMETRICS; | ||
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| // not really used in our case but part of the other structures | ||
| typedef struct tagUAHMENUPOPUPMETRICS | ||
| { | ||
| DWORD rgcx[4]; | ||
| DWORD fUpdateMaxWidths : 2; // from kernel symbols, padded to full dword | ||
| } UAHMENUPOPUPMETRICS; | ||
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| // hmenu is the main window menu; hdc is the context to draw in | ||
| typedef struct tagUAHMENU | ||
| { | ||
| HMENU hmenu; | ||
| HDC hdc; | ||
| DWORD dwFlags; // no idea what these mean, in my testing it's either 0x00000a00 or sometimes 0x00000a10 | ||
| } UAHMENU; | ||
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| // menu items are always referred to by iPosition here | ||
| typedef struct tagUAHMENUITEM | ||
| { | ||
| int iPosition; // 0-based position of menu item in menubar | ||
| UAHMENUITEMMETRICS umim; | ||
| UAHMENUPOPUPMETRICS umpm; | ||
| } UAHMENUITEM; | ||
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| // the DRAWITEMSTRUCT contains the states of the menu items, as well as | ||
| // the position index of the item in the menu, which is duplicated in | ||
| // the UAHMENUITEM's iPosition as well | ||
| typedef struct UAHDRAWMENUITEM | ||
| { | ||
| DRAWITEMSTRUCT dis; // itemID looks uninitialized | ||
| UAHMENU um; | ||
| UAHMENUITEM umi; | ||
| } UAHDRAWMENUITEM; | ||
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| // the MEASUREITEMSTRUCT is intended to be filled with the size of the item | ||
| // height appears to be ignored, but width can be modified | ||
| typedef struct tagUAHMEASUREMENUITEM | ||
| { | ||
| MEASUREITEMSTRUCT mis; | ||
| UAHMENU um; | ||
| UAHMENUITEM umi; | ||
| } UAHMEASUREMENUITEM; | ||
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