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65 lines
1.4 KiB
65 lines
1.4 KiB
#include <atomic>
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#include <Windows.h>
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#include "no_gui/no_gui.h"
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#include "no_imports.h"
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no_gui gui;
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std::atomic<bool> draw_first_init = true;
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color blue(255, 0, 0, 255);
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color red(255, 255, 0, 0);
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__declspec(dllexport) PHANDLE event_handle = nullptr;
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using EtwEventUnregister = HANDLE(__fastcall*)(HANDLE);
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enum event_type
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{
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present = 0x500100110000B2,
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resize_buffers = 0x550200110000BD
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};
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void draw_handler(IDXGISwapChain* swapchain)
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{
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if (draw_first_init.exchange(false))
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{
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gui.init(swapchain);
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const auto event_unregister =
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LI_FN(GetProcAddress)(
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LI_FN(GetModuleHandleA)("ntdll.dll"),
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"EtwEventUnregister"
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);
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reinterpret_cast<EtwEventUnregister>(event_unregister)(*event_handle);
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}
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gui.begin_scene();
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{
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gui.draw_circle(gui.get_width() / 2, gui.get_height() / 2, 100, blue);
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gui.draw_cross(gui.get_width() / 2, gui.get_height() / 2, 100, 100, red);
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}
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gui.end_scene();
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}
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extern "C" __declspec(dllexport) ULONG event_handler
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(
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HANDLE handle,
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event_type* event_des,
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std::uint32_t data_count,
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IDXGISwapChain*** swapchain
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)
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{
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if (event_des && swapchain)
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{
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// switch on the event, there is a present event
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// a resize buffer event (if the window resizes)
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// there are a bunch of other events you can get too...
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switch (*event_des)
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{
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case present:
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draw_handler(**swapchain);
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break;
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default:
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break;
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}
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}
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return true;
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} |