106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
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#include <windows.h>
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#include <winuser.h>
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#include <assert.h>
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#include <stdint.h>
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#include "hook/table.h"
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#include "platform/misc.h"
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#include "util/dprintf.h"
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// BlockInput
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// ShowCursor
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static BOOL WINAPI my_BlockInput(BOOL fBlockIt);
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static int WINAPI my_ShowCursor(BOOL bShow);
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static BOOL WINAPI my_GetCursorInfo(PCURSORINFO pci);
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static BOOL (WINAPI *next_BlockInput)(BOOL fBlockIt);
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static int (WINAPI *next_ShowCursor)(BOOL bShow);
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static BOOL (WINAPI *next_GetCursorInfo)(PCURSORINFO pci);
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BOOL block_input_hook = true;
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BOOL show_cursor_hook = true;
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int real_cursor_state = 0;
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static const struct hook_symbol misc_hook_syms[] = {
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{
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.name = "BlockInput",
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.patch = my_BlockInput,
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.link = (void **) &next_BlockInput,
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}, {
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.name = "ShowCursor",
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.patch = my_ShowCursor,
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.link = (void **) &next_ShowCursor,
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}, {
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.name = "GetCursorInfo",
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.patch = my_GetCursorInfo,
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.link = (void **) &next_GetCursorInfo,
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}
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};
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HRESULT misc_hook_init(const struct misc_config *cfg)
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{
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assert(cfg != NULL);
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show_cursor_hook = cfg->show_cursor_hook;
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block_input_hook = cfg->block_input_hook;
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dprintf("Misc: init\n");
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hook_table_apply(
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NULL,
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"User32.dll",
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misc_hook_syms,
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_countof(misc_hook_syms));
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return S_OK;
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}
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static BOOL WINAPI my_BlockInput(BOOL fBlockIt)
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{
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if (!block_input_hook) {
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return next_BlockInput(fBlockIt);
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}
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dprintf("Misc: Block BlockInput -> %d\n", fBlockIt);
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return true;
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}
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static int WINAPI my_ShowCursor(BOOL bShow)
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{
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if (!show_cursor_hook) {
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return next_ShowCursor(bShow);
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}
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dprintf("Misc: Block ShowCursor -> %d\n", bShow);
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// Keep track for GetCursorInfo
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if (bShow) {
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return ++real_cursor_state;
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} else {
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return --real_cursor_state;
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}
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}
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static BOOL WINAPI my_GetCursorInfo(PCURSORINFO pci)
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{
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if (!show_cursor_hook) {
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return next_GetCursorInfo(pci);
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}
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// Game only seems to read the flags field,
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// so that's all we'll mess with
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dprintf("Misc: my_GetCursorInfo\n");
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if (real_cursor_state >= 0) {
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pci->flags = CURSOR_SHOWING;
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} else {
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pci->flags = 0;
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}
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return true;
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}
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