[PATCH v8 2/4] dlls/twaindsm: Implement DG_CONTROL/DAT_ENTRYPOINT/MSG_GET

[Bernd Herd]

From: Bernd Herd

Implement DG_CONTROL/DAT_ENTRYPOINT/MSG_GET as a first step towards
implementing Twain 2.0 extensions to the protocol
---
 dlls/twaindsm/dsm_ctrl.c     | 34 ++++++++++++++++++++++++++++++++++
 dlls/twaindsm/twain32_main.c | 15 +++++++++++++++
 dlls/twaindsm/twain_i.h      |  1 +
 include/twain.h              |  2 ++
 4 files changed, 52 insertions(+)

diff --git a/dlls/twaindsm/dsm_ctrl.c b/dlls/twaindsm/dsm_ctrl.c
index c77f4f32b6b..8addc688188 100644
--- a/dlls/twaindsm/dsm_ctrl.c
+++ b/dlls/twaindsm/dsm_ctrl.c
@@ -582,6 +582,12 @@ TW_UINT16 TWAIN_OpenDSM (pTW_IDENTITY pOrigin, TW_MEMREF pData)
    TRACE("DG_CONTROL/DAT_PARENT/MSG_OPENDSM\n");
         if (!DSM_initialized) {
                 event_message = RegisterWindowMessageA("WINE TWAIN_32 EVENT");
+
+		if (pOrigin->SupportedGroups & DF_APP2)
+		{
+			pOrigin->SupportedGroups |= DF_DSM2;
+		}
+
    	DSM_currentDevice = 0;
    	DSM_initialized = TRUE;
    	DSM_twCC = TWCC_SUCCESS;
@@ -606,3 +612,31 @@ TW_UINT16 TWAIN_GetDSMStatus (pTW_IDENTITY pOrigin, TW_MEMREF pData)
    DSM_twCC = TWCC_SUCCESS;  /* clear the condition code */
    return TWRC_SUCCESS;
 }
+
+
+/* DG_CONTROL/DAT_ENTRYPOINT/MSG_GET */
+TW_UINT16 TWAIN_GetEntrypoint(TW_ENTRYPOINT *pEntrypoint)
+{
+	TW_UINT16 twRC;
+
+	if (!pEntrypoint)
+	{
+		ERR("pEntrypoint is null\n");
+		twRC = TWRC_FAILURE;
+		DSM_twCC = TWCC_BADVALUE;
+	}
+	else if (pEntrypoint->Size < sizeof(TW_ENTRYPOINT))
+	{
+		ERR("pEntrypoint->Size=%ld too small\n", pEntrypoint->Size);
+		twRC = TWRC_FAILURE;
+		DSM_twCC = TWCC_BADVALUE;
+	}
+	else
+	{
+		memcpy(pEntrypoint, &_entrypoints, sizeof(_entrypoints));
+		twRC = TWRC_SUCCESS;
+		DSM_twCC = TWCC_SUCCESS;
+	}
+
+  return twRC;
+}
diff --git a/dlls/twaindsm/twain32_main.c b/dlls/twaindsm/twain32_main.c
index a8b11a9bbfe..8edbad40327 100644
--- a/dlls/twaindsm/twain32_main.c
+++ b/dlls/twaindsm/twain32_main.c
@@ -126,6 +126,21 @@ static TW_UINT16 TWAIN_SourceManagerHandler (
             }
             break;

+        case DAT_ENTRYPOINT:
+            switch (MSG)
+            {
+                case MSG_GET:
+                    twRC = TWAIN_GetEntrypoint((TW_ENTRYPOINT *) pData);
+                    break;
+
+                default:
+                    /* Unrecognized operation triplet */
+                    twRC = TWRC_FAILURE;
+                    DSM_twCC = TWCC_BADPROTOCOL;
+                    WARN("unrecognized operation triplet\n");
+            }
+            break;
+
         case DAT_STATUS:
             if (MSG == MSG_GET) {
                 twRC = TWAIN_GetDSMStatus (pOrigin, pData);
diff --git a/dlls/twaindsm/twain_i.h b/dlls/twaindsm/twain_i.h
index 7ff608d2e95..a4aa37a5dbd 100644
--- a/dlls/twaindsm/twain_i.h
+++ b/dlls/twaindsm/twain_i.h
@@ -63,5 +63,6 @@ extern TW_UINT16 TWAIN_OpenDSM(pTW_IDENTITY pOrigin, TW_MEMREF pData);
 extern TW_UINT16 TWAIN_GetDSMStatus(pTW_IDENTITY pOrigin, TW_MEMREF pData);
 extern TW_UINT16 TWAIN_ControlNull(pTW_IDENTITY pOrigin, pTW_IDENTITY pDest, activeDS *pSource, TW_UINT16 MSG, TW_MEMREF pData);
 extern TW_UINT16 TWAIN_ProcessEvent(pTW_IDENTITY pOrigin, activeDS *pSource, TW_MEMREF pData);
+extern TW_UINT16 TWAIN_GetEntrypoint(TW_ENTRYPOINT *pEntrypoint);

#endif
diff --git a/include/twain.h b/include/twain.h
index ec17a4fe519..0dc65fcd8d0 100644
--- a/include/twain.h
+++ b/include/twain.h
@@ -1845,6 +1845,8 @@ typedef TW_UINT16 (*DSENTRYPROC)(pTW_IDENTITY,

/* Definitions from TWAIN 2.x used by our builtin data sources */
 #define DAT_ENTRYPOINT 0x0403
+#define DF_DSM2 0x10000000L
+#define DF_APP2 0x20000000L
 #define DF_DS2 0x40000000

#ifdef  __cplusplus